<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns="http://www.w3.org/TR/REC-html40">  <head> <meta http-equiv=Content-Type content="text/html; charset=windows-1252"> <meta name=ProgId content=Word.Document> <meta name=Generator content="Microsoft Word 9"> <meta name=Originator content="Microsoft Word 9"> <link rel=File-List href="./EXTRANS_fichiers/filelist.xml"> <link rel=Edit-Time-Data href="./EXTRANS_fichiers/editdata.mso"> <!--[if !mso]> <style> v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} </style> <![endif]--> <title>Exercices corrigs de transport solide</title> <!--[if gte mso 9]><xml>  <o:DocumentProperties>   <o:Author>Remini Boualem</o:Author>   <o:Template>Normal</o:Template>   <o:LastAuthor>rafed</o:LastAuthor>   <o:Revision>3</o:Revision>   <o:TotalTime>1332</o:TotalTime>   <o:LastPrinted>2000-01-12T12:04:00Z</o:LastPrinted>   <o:Created>2001-02-22T16:58:00Z</o:Created>   <o:LastSaved>2001-02-22T17:22:00Z</o:LastSaved>   <o:Pages>26</o:Pages>   <o:Words>1121</o:Words>   <o:Characters>6394</o:Characters>   <o:Company> </o:Company>   <o:Lines>53</o:Lines>   <o:Paragraphs>12</o:Paragraphs>   <o:CharactersWithSpaces>7852</o:CharactersWithSpaces>   <o:Version>9.2812</o:Version>  </o:DocumentProperties> </xml><![endif]--><!--[if gte mso 9]><xml>  <w:WordDocument>   <w:Zoom>75</w:Zoom>   <w:HyphenationZone>21</w:HyphenationZone>   <w:DrawingGridHorizontalSpacing>6 pt</w:DrawingGridHorizontalSpacing>   <w:DrawingGridVerticalSpacing>6 pt</w:DrawingGridVerticalSpacing>   <w:DisplayVerticalDrawingGridEvery>0</w:DisplayVerticalDrawingGridEvery>   <w:UseMarginsForDrawingGridOrigin/>   <w:Compatibility>    <w:SpaceForUL/>    <w:BalanceSingleByteDoubleByteWidth/>    <w:DoNotLeaveBackslashAlone/>    <w:ULTrailSpace/>    <w:DoNotExpandShiftReturn/>    <w:UsePrinterMetrics/>    <w:WW6BorderRules/>    <w:FootnoteLayoutLikeWW8/>    <w:ShapeLayoutLikeWW8/>    <w:AlignTablesRowByRow/>    <w:ForgetLastTabAlignment/>    <w:AutoSpaceLikeWord95/>    <w:LayoutRawTableWidth/>    <w:LayoutTableRowsApart/>   </w:Compatibility>  </w:WordDocument> </xml><![endif]--> <style> <!--  /* Font Definitions */ @font-face 	{font-family:"Brush Script MT"; 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mso-bidi-font-size:10.0pt;font-family:"Brush Script MT"'>EXERCICE<span style="mso-spacerun: yes"> </span>1<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:1'> </span></span><span style='font-size:20.0pt;mso-bidi-font-size:10.0pt;font-family:"Brush Script MT"'>S</span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>oient deux barrages A et B situs sur le mme oued. Le barrage A dverse annuellement 10<sup>6</sup> m<sup>3</sup> de vase dans le barrage B.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>Les deux barrages ont t mis en exploitation en 1930. En 1990, les levs bathymtriques ont donn 20.10<sup>6</sup> m<sup>3</sup> de vase dans le barrage A et 80 Mm<sup>3</sup> dans le barrage B.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>La superficie du bassin versant (S<sub>A</sub>)) A est de 800 km.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>La superficie du bassin versant (S<sub>B</sub>) B est de 900 km.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:1'> </span>1- Estimer le taux drosion pour les deux bassins versants.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:1'> </span>2- On suppose pour les deux bassins versants que la pluviomtrie <span style='mso-tab-count:1'> </span>moyenne annuelle est de 500 mm, la temprature moyenne annuelle est de 25 C.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:1'> </span>Quelle est le bassin versant le plus dgrad?<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:1'> </span>3- Pourquoi  votre avis, le taux drosion a doubl de 1990  1996? Justifier.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><i style='mso-bidi-font-style: normal'><span style='font-size:22.0pt;mso-bidi-font-size:10.0pt;font-family: "Brush Script MT"'>EXERCICE<span style="mso-spacerun: yes"> </span>2<o:p></o:p></span></i></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><i style='mso-bidi-font-style: normal'><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span style='mso-tab-count:1'> </span></span></i><span style='font-size: 12.0pt;mso-bidi-font-size:10.0pt'>Soit un barrage de capacit totale gale  40.10<sup>6</sup> m<sup>3</sup>, mis en exploitation en 1950. La superficie du bassin versant en amont du barrage est de 800 km.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>La pente moyenne du torrent est I = 0,005.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>Lapport annuel moyen est de A<sub>0</sub> = 100.10<sup>6</sup> m<sup>3</sup>.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>Le bassin versant est situ dans une rgion de forte rosion, labsence des vgtaux est remarque et possde une forme en gnrale convexe et en terre jaune.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>Peut-on estimer la masse totale rode<i style='mso-bidi-font-style:normal'>.<o:p></o:p></i></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><i style='mso-bidi-font-style: normal'><span style='font-size:22.0pt;mso-bidi-font-size:10.0pt;font-family: "Brush Script MT"'>EXERCICE </span></i><span style='font-size:22.0pt; mso-bidi-font-size:10.0pt;font-family:"Brush Script MT"'><span style="mso-spacerun: yes"></span>3<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:8.0pt; mso-bidi-font-size:10.0pt;font-family:"Brush Script MT"'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:1'> </span>Soit un bassin versant de superficie gale  800 km.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>Les mesures de levs bathymtriques dans la retenue du barrage se trouvant  laval donne un volume de vase de 40.10<sup>6</sup> m<sup>3</sup> en 1990 sachant que le barrage a t mis en exploitation en 1930.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>1- Peut-on dduire le taux drosion du bassin versant?<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>2- Le bassin versant est de faible permabilit, la pluviomtrie moyenne annuelle enregistre est de 600 mm.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>La temprature moyenne annuelle est de 25 C (en 1996).<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>Estimer le taux drosion .<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><i style='mso-bidi-font-style: normal'><span style='font-size:22.0pt;mso-bidi-font-size:10.0pt;font-family: "Brush Script MT"'>EXERCICE<span style="mso-spacerun: yes"> </span>4<o:p></o:p></span></i></p>  <p class=MsoNormal style='text-align:justify'><b style='mso-bidi-font-weight: normal'><span style='font-size:14.0pt;mso-bidi-font-size:10.0pt;font-family: Arial;mso-bidi-font-family:"Times New Roman"'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></b></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:1'> </span>On veut construire un barrage  laval dun bassin versant de superficie S = 800 km.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>LA pluviomtrie moyenne annuelle est de 700 mm. La temprature moyenne annuelle est de 23 C. Le bassin versant est de permabilit faible  moyen.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>Il est  noter que le barrage dune capacit de 40.10<sup>6</sup> m<sup>3</sup> a t mis en service en 1960.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:1'> </span>1- Calculer le taux drosion.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:1'> </span>2- Peut-on estimer le volume mort du barrage en une dure de 20 annes?<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:1'> </span>3- Calculer lapport solide dans la retenue.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><i style='mso-bidi-font-style: normal'><span style='font-size:22.0pt;mso-bidi-font-size:10.0pt;font-family: "Brush Script MT"'>EXERCICE </span></i><span style='font-size:22.0pt; mso-bidi-font-size:10.0pt;font-family:"Brush Script MT"'><span style="mso-spacerun: yes"></span>5<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><i style='mso-bidi-font-style: normal'><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></i></p>  <p class=MsoNormal style='text-align:justify'><i style='mso-bidi-font-style: normal'><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span style='mso-tab-count:1'> </span></span></i><span style='font-size: 12.0pt;mso-bidi-font-size:10.0pt'>Soit un barrage de capacit de 100.10<sup>6</sup> m<sup>3</sup>. La taux drosion du bassin versant est de: E = 3470 t/km.an.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>La superficie du bassin versant est de 650 km. Le barrage a t mis en eau en 1930.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>En quelle anne le barrage sera compltement envas?<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:14.0pt; mso-bidi-font-size:10.0pt;font-family:"Brush Script MT"'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:22.0pt; mso-bidi-font-size:10.0pt;font-family:"Brush Script MT"'>EXERCICE<span style="mso-spacerun: yes"> </span>6<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>a- Montrer que le profil du fond dune rivire peut prendre la fonction: Z = Z<sub>0</sub>.e</span><sup><span style='font-size: 12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>a</span></span></sup><sup><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>x/2</span></sup><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>avec;<span style='mso-tab-count:1'> </span><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><!--[if gte vml 1]><v:line id="_x0000_s1027"  style='position:absolute;left:0;text-align:left;z-index:1;  mso-position-horizontal-relative:text;mso-position-vertical-relative:text'  from="64.1pt,-.35pt" to="64.15pt,63.6pt" o:allowincell="f" strokeweight="1pt">  <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"   endarrowlength="short"/>  <w:wrap anchorx="page"/> </v:line><![endif]--><![if !vml]><span style='mso-ignore:vglayout;position: relative;z-index:0'><span style='left:0px;position:absolute;left:84px; top:-1px;width:4px;height:88px'><img width=4 height=88 src="./EXTRANS_fichiers/image001.gif" v:shapes="_x0000_s1027"></span></span><![endif]><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span style='mso-tab-count: 2'> </span>Z: cote du fond;<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:2'> </span>Z<sub>0</sub>: cote initiale du fond;<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:2'> </span>x: distance (km);<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:2'> </span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'>a</span></span><span style='font-size: 12.0pt;mso-bidi-font-size:10.0pt'>: coefficient dusure.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal align=center style='text-align:center'><b style='mso-bidi-font-weight: normal'><span style='font-size:14.0pt;mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></b></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:1'> </span><span style="mso-spacerun: yes"> </span>Z<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:1'> </span><span style="mso-spacerun: yes"> </span>Z<sub>O</sub><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:2'> </span><span style="mso-spacerun: yes"></span>Z = Z<sub>0</sub>.e</span><sup><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'>a</span></span></sup><sup><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>x/2</span></sup><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; 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mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <br style='mso-ignore:vglayout' clear=ALL>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>b- En supposant que le fond est linaire (fonction du fond est linaire), dterminer lquation permettant dvaluer lerreur faite entre les profils de fonction exponentielle et linaire.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><!--[if gte vml 1]><v:group id="_x0000_s1098"  style='position:absolute;left:0;text-align:left;margin-left:14.2pt;  margin-top:8.95pt;width:298.25pt;height:165.1pt;z-index:10' coordsize="20000,20000"  o:allowincell="f">  <v:rect id="_x0000_s1099" style='position:absolute;width:20000;height:20000'   filled="f"/>  <v:line id="_x0000_s1100" style='position:absolute;flip:y' from="1904,1599"   to="1908,17595">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrow="block"    endarrowwidth="narrow" endarrowlength="short"/>  </v:line><v:line id="_x0000_s1101" style='position:absolute' from="476,15990"   to="19048,15996">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrow="block"    endarrowwidth="narrow" endarrowlength="short"/>  </v:line><v:line id="_x0000_s1102" style='position:absolute' from="1904,7196"   to="14763,15996" strokeweight="2pt">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"    endarrowlength="short"/>  </v:line><v:shape id="_x0000_s1103" type="#_x0000_t19" style='position:absolute; 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mso-bidi-font-size:10.0pt;font-family:"Brush Script MT"'><span style="mso-spacerun: yes"></span>7<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>a- Dfinir la correction torrentielle.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>b- Dterminer le temps (la dure T) pour atteindre la pente de compensation I<sub>C</sub>.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:2'> </span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language: EN-GB'>T = f(E<sub>S</sub>, S, I<sub>C</sub>, I, H, </span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'>r</span></span><sub><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'>S</span></sub><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language: EN-GB'>, L)<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>c- Est-ce que la pente de compensation calcule par la relation de Baloiv est suffisante, peut-on vrifier une autre condition?<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><!--[if gte vml 1]><v:group id="_x0000_s1126"  style='position:absolute;left:0;text-align:left;margin-left:9pt;margin-top:7.75pt;  width:292.85pt;height:204pt;z-index:12' coordsize="20000,20000" o:allowincell="f">  <v:rect id="_x0000_s1127" style='position:absolute;width:20000;height:20000'   filled="f" strokeweight="1pt"/>  <v:line id="_x0000_s1128" style='position:absolute' from="15633,5569" to="15636,17407"   strokeweight="1pt">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"    endarrowlength="short"/>  </v:line><v:line id="_x0000_s1129" style='position:absolute' from="15633,5569"   to="16606,5574" strokeweight="1pt">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"    endarrowlength="short"/>  </v:line><v:line id="_x0000_s1130" style='position:absolute' from="15633,17402"   to="18060,17407" strokeweight="1pt">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"    endarrowlength="short"/>  </v:line><v:line id="_x0000_s1131" style='position:absolute' from="16602,5569"   to="18060,17407" strokeweight="1pt">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"    endarrowlength="short"/>  </v:line><v:line id="_x0000_s1132" style='position:absolute;flip:x y' from="2056,4176"   to="15636,17407" strokeweight="1pt">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"    endarrowlength="short"/>  </v:line><v:line id="_x0000_s1133" style='position:absolute' from="2056,4176"   to="15636,5574" strokeweight="1pt">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"    endarrowlength="short"/>  </v:line><v:line id="_x0000_s1134" style='position:absolute' from="18542,5569"   to="18545,17407">   <v:stroke startarrow="block" startarrowwidth="narrow" startarrowlength="short"    endarrow="block" endarrowwidth="narrow" endarrowlength="short"/>  </v:line><v:line id="_x0000_s1135" style='position:absolute' from="2056,3480"   to="15636,3485">   <v:stroke startarrow="block" startarrowwidth="narrow" startarrowlength="short"    endarrow="block" endarrowwidth="narrow" endarrowlength="short"/>  </v:line><w:wrap anchorx="page"/> </v:group><![endif]--><![if !vml]><span style='mso-ignore:vglayout'>  <table cellpadding=0 cellspacing=0 align=left>  <tr>   <td width=12 height=10></td>  </tr>  <tr>   <td></td>   <td><img width=391 height=273 src="./EXTRANS_fichiers/image004.gif" v:shapes="_x0000_s1126 _x0000_s1127 _x0000_s1128 _x0000_s1129 _x0000_s1130 _x0000_s1131 _x0000_s1132 _x0000_s1133 _x0000_s1134 _x0000_s1135"></td>  </tr> </table>  </span><![endif]><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <br style='mso-ignore:vglayout' clear=ALL>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:4'> </span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language: EN-GB'>L<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style='mso-tab-count:5'> </span>I<sub>C</sub><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style='mso-tab-count:4'> </span><span style="mso-spacerun: yes"> </span>I<span style='mso-tab-count:4'> </span><span style="mso-spacerun: yes"> </span>H<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><b style='mso-bidi-font-weight: normal'><span lang=EN-GB style='font-size:14.0pt;mso-bidi-font-size:10.0pt; font-family:Arial;mso-bidi-font-family:"Times New Roman";mso-ansi-language: EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></b></p>  <p class=MsoNormal style='text-align:justify'><b style='mso-bidi-font-weight: normal'><span lang=EN-GB style='font-size:14.0pt;mso-bidi-font-size:10.0pt; font-family:Arial;mso-bidi-font-family:"Times New Roman";mso-ansi-language: EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></b></p>  <p class=MsoNormal style='text-align:justify'><i style='mso-bidi-font-style: normal'><span lang=EN-GB style='font-size:22.0pt;mso-bidi-font-size:10.0pt; font-family:"Brush Script MT";mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></i></p>  <p class=MsoNormal style='text-align:justify'><i style='mso-bidi-font-style: normal'><span style='font-size:22.0pt;mso-bidi-font-size:10.0pt;font-family: "Brush Script MT"'>EXERCICE </span></i><span style='font-size:22.0pt; mso-bidi-font-size:10.0pt;font-family:"Brush Script MT"'><span style="mso-spacerun: yes"></span>8<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:1'> </span>Dterminer la contrainte de cisaillement </span><span style='font-size:12.0pt;mso-bidi-font-size: 10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>t</span></span><sub><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>0</span></sub><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'> dans une conduite circulaire pour les deux cas suivants:<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:1'> </span>1 cas: durant la saison dhiver, le niveau deau est  une hauteur h = 3R/2 (fig.1).<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:1'> </span>2 cas: durant la saison dt, le niveau deau est  une hauteur h = R/2 (fig.2).<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:3'> </span><span style="mso-spacerun: yes"> </span>3R/2<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><!--[if gte vml 1]><v:group id="_x0000_s1076"  style='position:absolute;left:0;text-align:left;margin-left:0;margin-top:-102.95pt;  width:319.55pt;height:170.45pt;z-index:9' coordsize="20000,20000"  o:allowincell="f">  <v:rect id="_x0000_s1077" style='position:absolute;width:20000;height:20000'   filled="f" strokeweight="1pt"/>  <v:oval id="_x0000_s1078" style='position:absolute;left:889;top:4148;width:5780;   height:10836' filled="f"/>  <v:oval id="_x0000_s1079" style='position:absolute;left:11998;top:4148;   width:5780;height:10836' filled="f"/>  <v:line id="_x0000_s1080" style='position:absolute' from="1333,6653" to="6224,6659"   strokeweight="1pt">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"    endarrowlength="short"/>  </v:line><v:line id="_x0000_s1081" style='position:absolute' from="12442,12485"   to="17334,12490" strokeweight="1pt">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"    endarrowlength="short"/>  </v:line><v:line id="_x0000_s1082" style='position:absolute' from="7554,6653"   to="7558,14990">   <v:stroke startarrow="block" startarrowwidth="narrow" startarrowlength="short"    endarrow="block" endarrowwidth="narrow" endarrowlength="short"/>  </v:line><v:line id="_x0000_s1083" style='position:absolute' from="18219,12485"   to="18223,14990">   <v:stroke startarrow="block" startarrowwidth="narrow" startarrowlength="short"    endarrow="block" endarrowwidth="narrow" endarrowlength="short"/>  </v:line><v:line id="_x0000_s1084" style='position:absolute' from="2666,7486"   to="4891,7492" strokeweight="1pt">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"    endarrowlength="short"/>  </v:line><v:line id="_x0000_s1085" style='position:absolute' from="13776,13318"   to="16445,13324" strokeweight="1pt">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"    endarrowlength="short"/>  </v:line><w:wrap anchorx="page"/> </v:group><![endif]--><![if !vml]><span style='mso-ignore:vglayout;position: relative;z-index:26;left:0px;top:-137px;width:427px;height:228px'><img width=427 height=228 src="./EXTRANS_fichiers/image005.gif" v:shapes="_x0000_s1076 _x0000_s1077 _x0000_s1078 _x0000_s1079 _x0000_s1080 _x0000_s1081 _x0000_s1082 _x0000_s1083 _x0000_s1084 _x0000_s1085"></span><![endif]><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <br style='mso-ignore:vglayout' clear=ALL>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:8'> </span><span style="mso-spacerun: yes"> </span>R/2<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>On suppose que lcoulement est uniforme. La pente du radier est I (constante).<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>Donnes: </span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>g</span></span><sub><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>eau</span></sub><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>, R: rayon, I.<o:p></o:p></span></p>  <div style='border:none;border-top:solid windowtext .75pt;padding:1.0pt 0cm 0cm 0cm'>  <p class=MsoNormal style='text-align:justify;border:none;mso-border-top-alt: solid windowtext .75pt;padding:0cm;mso-padding-alt:1.0pt 0cm 0cm 0cm'><span style='font-size:22.0pt;mso-bidi-font-size:10.0pt;font-family:"Brush Script MT"'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify;border:none;mso-border-top-alt: solid windowtext .75pt;padding:0cm;mso-padding-alt:1.0pt 0cm 0cm 0cm'><span style='font-size:22.0pt;mso-bidi-font-size:10.0pt;font-family:"Brush Script MT"'>CORRIGE<o:p></o:p></span></p>  </div>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>La contrainte de cisaillement est donne par:<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:2'> </span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'>t</span></span><sub><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>0</span></sub><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'> = </span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'>r</span></span><span style='font-size: 12.0pt;mso-bidi-font-size:10.0pt'>g.R<sub>H</sub>.I<span style="mso-spacerun: yes"> </span>et<span style="mso-spacerun: yes"> </span>R<sub>H</sub> = S<sub>m </sub>/ P<sub>m<o:p></o:p></sub></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><b style='mso-bidi-font-weight: normal'><i style='mso-bidi-font-style:normal'><u><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>1 cas:<span style="mso-spacerun: yes"> </span>h = R/2 + R<o:p></o:p></span></u></i></b></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><!--[if gte vml 1]><v:group id="_x0000_s1105"  style='position:absolute;left:0;text-align:left;margin-left:58.7pt;  margin-top:-54.65pt;width:239.75pt;height:163.15pt;z-index:11' coordorigin="-2,1"  coordsize="20004,19998" o:allowincell="f">  <v:shape id="_x0000_s1106" type="#_x0000_t19" style='position:absolute;left:10661;   top:8299;width:1189;height:2617;flip:y' strokeweight="1pt"/>  <v:rect id="_x0000_s1107" style='position:absolute;left:-2;top:1;width:20004;   height:19998' filled="f" strokeweight="1pt"/>  <v:oval id="_x0000_s1108" style='position:absolute;left:5330;top:3078;width:9482;   height:13930' filled="f" strokeweight="1pt"/>  <v:line id="_x0000_s1109" style='position:absolute' from="2368,10040" to="18959,10046"   strokeweight="1pt">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"    endarrowlength="short"/>  </v:line><v:line id="_x0000_s1110" style='position:absolute' from="6514,5688"   to="13627,5695" strokeweight="1pt">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"    endarrowlength="short"/>  </v:line><v:line id="_x0000_s1111" style='position:absolute' from="6514,5688"   to="10665,10046" strokeweight="1pt">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"    endarrowlength="short"/>  </v:line><v:line id="_x0000_s1112" style='position:absolute;flip:x' from="10661,5688"   to="13627,10046" strokeweight="1pt">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"    endarrowlength="short"/>  </v:line><v:shape id="_x0000_s1113" type="#_x0000_t19" style='position:absolute;   left:8884;top:8299;width:1189;height:2617;flip:x y' strokeweight="1pt"/>  <w:wrap anchorx="page"/> </v:group><![endif]--><![if !vml]><span style='mso-ignore:vglayout;position: relative;z-index:36'><span style='left:0px;position:absolute;left:78px; top:-73px;width:321px;height:219px'><img width=321 height=219 src="./EXTRANS_fichiers/image006.gif" v:shapes="_x0000_s1105 _x0000_s1106 _x0000_s1107 _x0000_s1108 _x0000_s1109 _x0000_s1110 _x0000_s1111 _x0000_s1112 _x0000_s1113"></span></span><![endif]><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span style='mso-tab-count: 4'> </span>R<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:4'> </span><span style="mso-spacerun: yes"> </span></span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>q</span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'>R<sub>H</sub> = S<sub>m </sub>/ P<sub>m</sub><span style="mso-spacerun: yes"> </span>avec<span style="mso-spacerun: yes"> </span>S<sub>m</sub> = S<sub>1</sub> + S<sub>2</sub><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'>P<sub>m</sub> = </span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family: Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'>q</span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'>.R<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style="mso-spacerun: yes"> </span>R/2<span style='mso-tab-count:1'> </span><span style="mso-spacerun: yes"> </span>1<span style='mso-tab-count:1'> </span><span style="mso-spacerun: yes"> </span></span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>p</span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language: EN-GB'><span style='mso-tab-count:2'> </span><span style="mso-spacerun: yes"> </span>4</span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>p</span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language: EN-GB'><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style='mso-tab-count:1'> </span></span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>cos</span><span style='font-size:12.0pt;mso-bidi-font-size: 10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>a</span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'> = </span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol; mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family: Symbol'></span></span></span></span><span style='font-size:12.0pt;mso-bidi-font-size: 10.0pt'> = </span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt; font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span style="mso-spacerun: yes"> </span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt; font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span style="mso-spacerun: yes"> </span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt; font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>a</span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'> = </span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol; mso-symbol-font-family:Symbol'></span></span></span><span style='font-size: 12.0pt;mso-bidi-font-size:10.0pt'><span style="mso-spacerun: yes"> </span>et<span style="mso-spacerun: yes"> </span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'>q</span></span><span style='font-size: 12.0pt;mso-bidi-font-size:10.0pt'> = </span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span></span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:1'> </span><span style="mso-spacerun: yes"> </span>R<span style="mso-spacerun: yes"> </span>2<span style="mso-spacerun: yes"> </span><span style="mso-spacerun: yes"></span>3<span style="mso-spacerun: yes"> </span>3<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style="mso-spacerun: yes"> </span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'></span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'>3<span style="mso-spacerun: yes"> </span><span style='mso-tab-count:1'> </span><span style="mso-spacerun: yes"></span>2</span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>p</span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language: EN-GB'><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'>S<sub>1</sub> = </span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family: Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol; mso-symbol-font-family:Symbol'></span></span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'> R<span style="mso-spacerun: yes"> </span>et<span style="mso-spacerun: yes"> </span>S<sub>2</sub> = </span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language: EN-GB'> R<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style="mso-spacerun: yes"> </span>4<span style="mso-spacerun: yes"> </span>3<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style="mso-spacerun: yes"> </span></span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language: EN-GB'>3<span style="mso-spacerun: yes"> </span>2<span style="mso-spacerun: yes"> </span><span style='mso-tab-count: 1'> </span><span style="mso-spacerun: yes"></span>4</span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'>p</span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'>S<sub>m</sub> = (</span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family: Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol; mso-symbol-font-family:Symbol'></span></span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'> + </span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol; mso-symbol-font-family:Symbol'></span></span></span><span style='font-size: 12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'> </span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'>p</span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'>)R<span style="mso-spacerun: yes"> </span>;<span style="mso-spacerun: yes"> </span>P<sub>m</sub> = </span><span style='font-size:12.0pt;mso-bidi-font-size: 10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span></span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language: EN-GB'> R<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style='mso-tab-count:1'> </span>4<span style="mso-spacerun: yes"> </span>3<span style="mso-spacerun: yes"> </span><span style='mso-tab-count:2'> </span><span style="mso-spacerun: yes"></span><span style='mso-tab-count:1'> </span><span style="mso-spacerun: yes"></span>3<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <table border=0 cellspacing=0 cellpadding=0 style='border-collapse:collapse;  mso-padding-alt:0cm 3.5pt 0cm 3.5pt'>  <tr>   <td width=99 valign=top style='width:74.4pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal style='text-align:justify'><span lang=EN-GB   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>   <p class=MsoNormal style='text-align:justify'><span lang=EN-GB   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>   <p class=MsoNormal style='text-align:justify'><span lang=EN-GB   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'>do:<o:p></o:p></span></p>   </td>   <td width=274 valign=top style='width:205.55pt;border:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal style='text-align:justify'><span lang=EN-GB   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span   style="mso-spacerun: yes"> </span>__<o:p></o:p></span></p>   <p class=MsoNormal style='text-align:justify'><span lang=EN-GB   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span   style="mso-spacerun: yes"> </span></span><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol;   mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";   mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:   symbol;mso-symbol-font-family:Symbol'></span></span><span lang=EN-GB   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'>3<span   style="mso-spacerun: yes"> </span>2<span style="mso-spacerun:   yes"> </span>4</span><span style='font-size:12.0pt;mso-bidi-font-size:   10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:   "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span   style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>p</span></span><span   lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:   EN-GB'><o:p></o:p></span></p>   <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt;   mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman";   mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:   Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>t</span></span><sub><span   lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:   EN-GB'>0</span></sub><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:   10.0pt;mso-ansi-language:EN-GB'> = </span><span style='font-size:12.0pt;   mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman";   mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:   Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>r</span></span><span   lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:   EN-GB'>g.I (</span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;   font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:   "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span   style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span   style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span></span><span   lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:   EN-GB'> + </span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;   font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:   "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span   style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span   style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span></span><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'> </span><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol;   mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";   mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:   symbol;mso-symbol-font-family:Symbol'>p</span></span><span lang=EN-GB   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'>)R   / </span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:   Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";   mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:   symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;   mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:   Symbol'></span></span></span></span><span lang=EN-GB style='font-size:12.0pt;   mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><o:p></o:p></span></p>   <p class=MsoNormal style='text-align:justify'><span lang=EN-GB   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span   style="mso-spacerun: yes"> </span></span><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>4<span   style="mso-spacerun: yes"> </span>3<span style="mso-spacerun:   yes"> </span>3<o:p></o:p></span></p>   <p class=MsoNormal style='text-align:justify'><![if !supportEmptyParas]>&nbsp;<![endif]><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>   </td>  </tr> </table>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>2 cas:<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><!--[if gte vml 1]><v:group id="_x0000_s1043"  style='position:absolute;left:0;text-align:left;margin-left:49.7pt;  margin-top:-82.9pt;width:241.45pt;height:163.35pt;z-index:7' coordsize="20000,20000"  o:allowincell="f">  <v:rect id="_x0000_s1044" style='position:absolute;width:20000;height:20000'   filled="f" strokeweight="1pt"/>  <v:oval id="_x0000_s1045" style='position:absolute;left:4705;top:3269;width:9414;   height:13915' filled="f" strokeweight="1pt"/>  <v:line id="_x0000_s1046" style='position:absolute' from="1176,10223" to="17648,10230"   strokeweight="1pt">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"    endarrowlength="short"/>  </v:line><v:line id="_x0000_s1047" style='position:absolute' from="5881,14570"   to="12943,14576" strokeweight="1pt">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"    endarrowlength="short"/>  </v:line><v:line id="_x0000_s1048" style='position:absolute' from="9410,10223"   to="12943,14576" strokeweight="1pt">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"    endarrowlength="short"/>  </v:line><v:line id="_x0000_s1049" style='position:absolute;flip:x' from="5881,10223"   to="9414,14576" strokeweight="1pt">   <v:stroke startarrowwidth="narrow" startarrowlength="short" endarrowwidth="narrow"    endarrowlength="short"/>  </v:line><w:wrap anchorx="page"/> </v:group><![endif]--><![if !vml]><span style='mso-ignore:vglayout;position: relative;z-index:45;left:66px;top:-111px;width:323px;height:219px'><img width=323 height=219 src="./EXTRANS_fichiers/image007.gif" v:shapes="_x0000_s1043 _x0000_s1044 _x0000_s1045 _x0000_s1046 _x0000_s1047 _x0000_s1048 _x0000_s1049"></span><![endif]><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <br style='mso-ignore:vglayout' clear=ALL>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:4'> </span>R<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <div style='border:none;border-top:solid windowtext .75pt;padding:1.0pt 0cm 0cm 0cm'>  <p class=MsoNormal style='text-align:justify;border:none;mso-border-top-alt: solid windowtext .75pt;padding:0cm;mso-padding-alt:1.0pt 0cm 0cm 0cm'><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify;border:none;mso-border-top-alt: solid windowtext .75pt;padding:0cm;mso-padding-alt:1.0pt 0cm 0cm 0cm'><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span style='mso-tab-count: 1'> </span><span style="mso-spacerun: yes"> </span><span style='mso-tab-count:2'> </span><span style="mso-spacerun: yes"></span></span><span style='font-size:12.0pt;mso-bidi-font-size: 10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>3<span style="mso-spacerun: yes"> </span>2<o:p></o:p></span></p>  </div>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>Pour ce cas:<span style="mso-spacerun: yes"> </span>S<sub>m</sub> = </span><span style='font-size:12.0pt;mso-bidi-font-size: 10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>p</span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>R - (</span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol; mso-symbol-font-family:Symbol'></span></span></span><span style='font-size: 12.0pt;mso-bidi-font-size:10.0pt'> + </span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>)R<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:2'> </span><span style="mso-spacerun: yes"> </span><span style='mso-tab-count:1'> </span><span style="mso-spacerun: yes"></span>4_<span style="mso-spacerun: yes"> </span>3<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:1'> </span><span style="mso-spacerun: yes"> </span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'>p</span></span><span style='font-size: 12.0pt;mso-bidi-font-size:10.0pt'><span style="mso-spacerun: yes"> </span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt; font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>3<span style="mso-spacerun: yes"> </span>4<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:2'> </span>S<sub>m</sub> = (</span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family: Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol; mso-symbol-font-family:Symbol'></span></span></span><span style='font-size: 12.0pt;mso-bidi-font-size:10.0pt'> - </span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>)R<span style="mso-spacerun: yes"> </span>et<span style="mso-spacerun: yes"> </span>P<sub>m</sub> = 2</span><span style='font-size:12.0pt;mso-bidi-font-size: 10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>p</span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>R - </span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol; mso-symbol-font-family:Symbol'></span></span></span><span style='font-size: 12.0pt;mso-bidi-font-size:10.0pt'> </span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>p</span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>R<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:2'> </span><span style="mso-spacerun: yes"> </span><span style='mso-tab-count:1'> </span><span style="mso-spacerun: yes"></span>3<span style="mso-spacerun: yes"> </span>4<span style="mso-spacerun: yes"> </span><span style='mso-tab-count:2'> </span><span style="mso-spacerun: yes"></span>3<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:2'> </span><span style="mso-spacerun: yes"> </span>2<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:2'> </span>P<sub>m</sub> = </span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family: Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol; mso-symbol-font-family:Symbol'></span></span></span><span style='font-size: 12.0pt;mso-bidi-font-size:10.0pt'> </span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>p</span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>R<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:2'> </span><span style="mso-spacerun: yes"> </span>3<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <table border=0 cellspacing=0 cellpadding=0 style='border-collapse:collapse;  mso-padding-alt:0cm 3.5pt 0cm 3.5pt'>  <tr>   <td width=128 valign=top style='width:95.65pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt;   mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>   <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt;   mso-bidi-font-size:10.0pt'>do:<o:p></o:p></span></p>   </td>   <td width=236 valign=top style='width:177.2pt;border:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt;   mso-bidi-font-size:10.0pt'><span style="mso-spacerun: yes">   </span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;   font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:   "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span   style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>p</span></span><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span style="mso-spacerun:   yes"> </span></span><span style='font-size:12.0pt;mso-bidi-font-size:   10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:   "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span   style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>3<span   style="mso-spacerun: yes"> </span>2<o:p></o:p></span></p>   <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt;   mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman";   mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:   Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>t</span></span><sub><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>0</span></sub><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt'> = </span><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol;   mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";   mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:   symbol;mso-symbol-font-family:Symbol'>r</span></span><span style='font-size:   12.0pt;mso-bidi-font-size:10.0pt'>g.I(</span><span style='font-size:12.0pt;   mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman";   mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:   Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span   style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span></span><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt'> - </span><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol;   mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";   mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:   symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;   mso-symbol-font-family:Symbol'></span></span></span><span style='font-size:   12.0pt;mso-bidi-font-size:10.0pt'> )R / </span><span style='font-size:12.0pt;   mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman";   mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:   Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span   style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span></span><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt'> </span><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol;   mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";   mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:   symbol;mso-symbol-font-family:Symbol'>p</span></span><span style='font-size:   12.0pt;mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>   <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt;   mso-bidi-font-size:10.0pt'><span style="mso-spacerun: yes">   </span>3<span style="mso-spacerun: yes"> </span>4<span   style="mso-spacerun: yes"> </span>3<o:p></o:p></span></p>   </td>  </tr> </table>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:22.0pt; mso-bidi-font-size:10.0pt;font-family:"Brush Script MT"'>EXERCICE<span style="mso-spacerun: yes"> </span>9<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>Dmontrer la relation:<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><!--[if gte vml 1]><v:rect id="_x0000_s1028"  style='position:absolute;left:0;text-align:left;margin-left:99.6pt;  margin-top:11.15pt;width:142.05pt;height:49.75pt;z-index:2;  mso-position-horizontal-relative:text;mso-position-vertical-relative:text'  o:allowincell="f" filled="f" strokeweight="1pt">  <w:wrap anchorx="page"/> </v:rect><![endif]--><![if !vml]><span style='mso-ignore:vglayout;position: absolute;z-index:52;left:0px;margin-left:133px;margin-top:15px;width:190px; height:67px'><img width=190 height=67 src="./EXTRANS_fichiers/image008.gif" v:shapes="_x0000_s1028"></span><![endif]><span lang=EN-GB style='font-size: 12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style='mso-tab-count:3'> </span><span style="mso-spacerun: yes"> </span>_<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style='mso-tab-count:4'> </span><span style="mso-spacerun: yes"> </span>U<sub>* </sub><span style="mso-spacerun: yes"></span></span><span style='font-size:12.0pt;mso-bidi-font-size: 10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language: EN-GB'>I<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style='mso-tab-count:2'> </span><span style="mso-spacerun: yes"> </span><span style='mso-tab-count:1'> </span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol; mso-symbol-font-family:Symbol'></span></span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'> = </span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol; mso-symbol-font-family:Symbol'></span></span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style='mso-tab-count:1'> </span><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style='mso-tab-count:1'> </span><span style='mso-tab-count:1'> </span><span style="mso-spacerun: yes"> </span><span style='mso-tab-count:1'> </span><span style="mso-spacerun: yes"></span><span style='mso-tab-count:1'> </span><span style="mso-spacerun: yes"></span>V<span style="mso-spacerun: yes"> </span>IF<sub>r</sub><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <div style='border:none;border-top:solid windowtext .75pt;padding:1.0pt 0cm 0cm 0cm'>  <p class=MsoNormal style='text-align:justify;border:none;mso-border-top-alt: solid windowtext .75pt;padding:0cm;mso-padding-alt:1.0pt 0cm 0cm 0cm'><span lang=NL style='font-size:22.0pt;mso-bidi-font-size:10.0pt;font-family:"Brush Script MT"; mso-ansi-language:NL'>CORRIGE<o:p></o:p></span></p>  </div>  <p class=MsoNormal style='text-align:justify'><span lang=NL style='font-size: 12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:NL'><span style='mso-tab-count: 2'> </span><span style="mso-spacerun: yes"></span>_______<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=NL style='font-size: 12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:NL'><span style='mso-tab-count: 2'> </span><span style="mso-spacerun: yes"> </span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'>t</span></span><sub><span lang=NL style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:NL'>0<span style="mso-spacerun: yes"> </span></span></sub><span lang=NL style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language: NL'><span style="mso-spacerun: yes"></span>____<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=NL style='font-size: 12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:NL'><span style='mso-tab-count: 1'> </span>U<sub>*</sub> =<span style="mso-spacerun: yes"> </span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt; font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span></span><span lang=NL style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language: NL'><span style="mso-spacerun: yes"> </span>;<span style="mso-spacerun: yes"> </span>V = C = </span><span style='font-size:12.0pt;mso-bidi-font-size: 10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span><span lang=NL style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language: NL'>h.I<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=NL style='font-size: 12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:NL'><span style="mso-spacerun: yes"> </span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'></span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style="mso-spacerun: yes"> </span></span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>r</span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'> <span lang=EN-GB><o:p></o:p></span></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:8.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style='mso-tab-count:1'> </span><span style="mso-spacerun: yes"> </span>____<span style="mso-spacerun: yes"> </span>__<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style="mso-spacerun: yes"> </span>U<sub>*<span style="mso-spacerun: yes"> </span></sub><span style="mso-spacerun: yes"></span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'></span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'>gh.I<span style="mso-spacerun: yes"> </span></span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language: EN-GB'>I<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style="mso-spacerun: yes"></span></span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language: EN-GB'> = </span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt; font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span></span></span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language: EN-GB'> = </span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt; font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language: EN-GB'><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style="mso-spacerun: yes"> </span>V<span style="mso-spacerun: yes"> </span><span style="mso-spacerun: yes"></span>V<span style="mso-spacerun: yes"> </span>IF<sub>r</sub><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <table border=0 cellspacing=0 cellpadding=0 style='margin-left:95.65pt;  border-collapse:collapse;mso-padding-alt:0cm 3.5pt 0cm 3.5pt'>  <tr>   <td width=104 valign=top style='width:77.95pt;border:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal style='text-align:justify'><span lang=EN-GB   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span   style="mso-spacerun: yes"></span>U<sub>*</sub><span style="mso-spacerun:   yes"> </span></span><span style='font-size:12.0pt;mso-bidi-font-size:   10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:   "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span   style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span><span   lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:   EN-GB'>I<o:p></o:p></span></p>   <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt;   mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman";   mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:   Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span   style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span></span><span   lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:   EN-GB'> = </span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;   font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:   "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span   style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span   style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span></span><span   lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:   EN-GB'><o:p></o:p></span></p>   <p class=MsoNormal style='text-align:justify'><span lang=EN-GB   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span   style="mso-spacerun: yes"> </span>V<span style="mso-spacerun: yes">   </span>IF<sub>r</sub><o:p></o:p></span></p>   </td>  </tr> </table>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:22.0pt; mso-bidi-font-size:10.0pt;font-family:"Brush Script MT"'>EXERCICE 10<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>Montrer que le coefficient de frottement peut se mettre sous la forme:<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><!--[if gte vml 1]><v:rect id="_x0000_s1029"  style='position:absolute;left:0;text-align:left;margin-left:85.4pt;  margin-top:12.75pt;width:99.45pt;height:49.75pt;z-index:3;  mso-position-horizontal-relative:text;mso-position-vertical-relative:text'  o:allowincell="f" filled="f" strokeweight="1pt">  <w:wrap anchorx="page"/> </v:rect><![endif]--><![if !vml]><span style='mso-ignore:vglayout'>  <table cellpadding=0 cellspacing=0 align=left>  <tr>   <td width=114 height=17></td>  </tr>  <tr>   <td></td>   <td><img width=133 height=67 src="./EXTRANS_fichiers/image009.gif" v:shapes="_x0000_s1029"></td>  </tr> </table>  </span><![endif]><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <br style='mso-ignore:vglayout' clear=ALL>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:3'> </span><span style="mso-spacerun: yes"> </span>8</span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>t</span></span><sub><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>0</span></sub><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:3'> </span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'>l</span></span><span style='font-size: 12.0pt;mso-bidi-font-size:10.0pt'> = </span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span></span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:2'> </span><span style="mso-spacerun: yes"> </span><span style='mso-tab-count:1'> </span><span style="mso-spacerun: yes"></span></span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>r</span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>V<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:22.0pt; mso-bidi-font-size:10.0pt;font-family:"Brush Script MT"'>CORRIGE<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>En partant de lquation de la vitesse moyenne de lcoulement: <o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:2'> </span><span style="mso-spacerun: yes"> </span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'>_____<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style='mso-tab-count:2'> </span>V = C</span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'></span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'>R<sub>H</sub>.I<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style='mso-tab-count:3'> </span><span style="mso-spacerun: yes"> </span>8g<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style='mso-tab-count:3'> </span>V = </span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type: symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol; mso-symbol-font-family:Symbol'></span></span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'> R<sub>H</sub>.I<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span style='mso-tab-count:3'> </span><span style="mso-spacerun: yes"> </span></span><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family: Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>l</span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <table border=0 cellspacing=0 cellpadding=0 style='border-collapse:collapse;  mso-padding-alt:0cm 3.5pt 0cm 3.5pt'>  <tr>   <td width=175 valign=top style='width:131.1pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal style='text-align:justify'><span lang=EN-GB   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span   style="mso-spacerun: yes"> </span>8g</span><span style='font-size:   12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:   "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;   mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:   Symbol'>r</span></span><span lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:   10.0pt;mso-ansi-language:EN-GB'>R<sub>H</sub>.I<o:p></o:p></span></p>   <p class=MsoNormal style='text-align:justify'><span lang=EN-GB   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'>V   = </span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:   Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";   mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:   symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;   mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:   Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'><span   style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span></span></span></span></span><span   lang=EN-GB style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:   EN-GB'><span style="mso-spacerun: yes"> </span></span><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol;   mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";   mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:   symbol;mso-symbol-font-family:Symbol'></span></span><span lang=EN-GB   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span   style="mso-spacerun: yes"> </span><o:p></o:p></span></p>   <p class=MsoNormal style='text-align:justify'><span lang=EN-GB   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:EN-GB'><span   style="mso-spacerun: yes"> </span></span><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol;   mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";   mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:   symbol;mso-symbol-font-family:Symbol'>l</span></span><span style='font-size:   12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:   "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;   mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:   Symbol'>r</span></span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>   </td>   <td width=113 valign=top style='width:3.0cm;border:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt;   mso-bidi-font-size:10.0pt'><span style="mso-spacerun: yes">   </span>8</span><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;   font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:   "Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span   style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>t</span></span><sub><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>0</span></sub><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>   <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt;   mso-bidi-font-size:10.0pt;font-family:Symbol;mso-ascii-font-family:"Times New Roman";   mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:   Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'>l</span></span><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt'> = </span><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol;   mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";   mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:   symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;   mso-symbol-font-family:Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:   Symbol'><span style='mso-char-type:symbol;mso-symbol-font-family:Symbol'></span></span></span></span></span><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>   <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt;   mso-bidi-font-size:10.0pt'><span style="mso-spacerun: yes"> </span></span><span   style='font-size:12.0pt;mso-bidi-font-size:10.0pt;font-family:Symbol;   mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";   mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style='mso-char-type:   symbol;mso-symbol-font-family:Symbol'>r</span></span><span style='font-size:   12.0pt;mso-bidi-font-size:10.0pt'>V<o:p></o:p></span></p>   </td>  </tr> </table>  <p class=MsoNormal style='text-align:justify'><b style='mso-bidi-font-weight: normal'><u><span style='font-size:14.0pt;mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></u></b></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:22.0pt; mso-bidi-font-size:10.0pt;font-family:"Brush Script MT"'>EXERCICE<span style="mso-spacerun: yes"> </span>11<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>Les donnes du taux drosion dun bassin versant (A) sont reprsentes dans le tableau 1.<o:p></o:p></span></p>  <p class=MsoNormal align=center style='text-align:center'><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>Tableau 1<o:p></o:p></span></p>  <table border=1 cellspacing=0 cellpadding=0 style='margin-left:10.6pt;  border-collapse:collapse;border:none;mso-border-alt:solid windowtext .75pt;  mso-padding-alt:0cm 3.5pt 0cm 3.5pt'>  <tr>   <td width=76 valign=top style='width:2.0cm;border:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'><span   style="mso-spacerun: yes"></span>Anne</p>   </td>   <td width=47 valign=top style='width:35.45pt;border:solid windowtext .75pt;   border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>91/92</p>   </td>   <td width=47 valign=top style='width:35.45pt;border:solid windowtext .75pt;   border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>92/93</p>   </td>   <td width=46 valign=top style='width:34.2pt;border:solid windowtext .75pt;   border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>93/94</p>   </td>   <td width=55 valign=top style='width:41.05pt;border:solid windowtext .75pt;   border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>94/95</p>   </td>   <td width=64 valign=top style='width:47.85pt;border:solid windowtext .75pt;   border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>95/96</p>   </td>   <td width=46 valign=top style='width:34.2pt;border:solid windowtext .75pt;   border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>96/97</p>   </td>   <td width=46 valign=top style='width:34.2pt;border:solid windowtext .75pt;   border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>97/98</p>   </td>  </tr>  <tr>   <td width=76 valign=top style='width:2.0cm;border:solid windowtext .75pt;   border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'><span   style="mso-spacerun: yes"></span>Es(t/km.an)</p>   </td>   <td width=47 valign=top style='width:35.45pt;border-top:none;border-left:   none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>750</p>   </td>   <td width=47 valign=top style='width:35.45pt;border-top:none;border-left:   none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>800</p>   </td>   <td width=46 valign=top style='width:34.2pt;border-top:none;border-left:none;   border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>850</p>   </td>   <td width=55 valign=top style='width:41.05pt;border-top:none;border-left:   none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>900</p>   </td>   <td width=64 valign=top style='width:47.85pt;border-top:none;border-left:   none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>950</p>   </td>   <td width=46 valign=top style='width:34.2pt;border-top:none;border-left:none;   border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>1000</p>   </td>   <td width=46 valign=top style='width:34.2pt;border-top:none;border-left:none;   border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>1171</p>   </td>  </tr>  <tr>   <td width=76 valign=top style='width:2.0cm;border:solid windowtext .75pt;   border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>R (mm</p>   </td>   <td width=47 valign=top style='width:35.45pt;border-top:none;border-left:   none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>161</p>   </td>   <td width=47 valign=top style='width:35.45pt;border-top:none;border-left:   none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>247,4</p>   </td>   <td width=46 valign=top style='width:34.2pt;border-top:none;border-left:none;   border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>370,7</p>   </td>   <td width=55 valign=top style='width:41.05pt;border-top:none;border-left:   none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>542,6</p>   </td>   <td width=64 valign=top style='width:47.85pt;border-top:none;border-left:   none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>778</p>   </td>   <td width=46 valign=top style='width:34.2pt;border-top:none;border-left:none;   border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>1095</p>   </td>   <td width=46 valign=top style='width:34.2pt;border-top:none;border-left:none;   border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>3137</p>   </td>  </tr> </table>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>1) Quelle est la permabilit du<span style="mso-spacerun: yes"> </span>bassin versant (A) ?<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>2) Les donnes pluviomtriques au niveau de ce bassin versant (A) durant lanne (x) sont rsumes dans le tableau 2.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:3'> </span>Tableau 2.<o:p></o:p></span></p>  <table border=1 cellspacing=0 cellpadding=0 style='margin-left:3.5pt;  border-collapse:collapse;border:none;mso-border-alt:solid windowtext .75pt;  mso-padding-alt:0cm 3.5pt 0cm 3.5pt'>  <tr>   <td width=76 valign=top style='width:2.0cm;border:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>Mois</p>   </td>   <td width=28 valign=top style='width:21.3pt;border:solid windowtext .75pt;   border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>S</p>   </td>   <td width=28 valign=top style='width:21.25pt;border:solid windowtext .75pt;   border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'><span lang=NL   style='mso-ansi-language:NL'>O<o:p></o:p></span></p>   </td>   <td width=28 valign=top style='width:21.25pt;border:solid windowtext .75pt;   border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'><span lang=NL   style='mso-ansi-language:NL'>N<o:p></o:p></span></p>   </td>   <td width=28 valign=top style='width:21.25pt;border:solid windowtext .75pt;   border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'><span lang=NL   style='mso-ansi-language:NL'>D<o:p></o:p></span></p>   </td>   <td width=28 valign=top style='width:21.3pt;border:solid windowtext .75pt;   border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'><span lang=NL   style='mso-ansi-language:NL'>J<o:p></o:p></span></p>   </td>   <td width=28 valign=top style='width:21.25pt;border:solid windowtext .75pt;   border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'><span lang=EN-GB   style='mso-ansi-language:EN-GB'>F<o:p></o:p></span></p>   </td>   <td width=28 valign=top style='width:21.25pt;border:solid windowtext .75pt;   border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'><span lang=EN-GB   style='mso-ansi-language:EN-GB'>M<o:p></o:p></span></p>   </td>   <td width=28 valign=top style='width:21.25pt;border:solid windowtext .75pt;   border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'><span lang=EN-GB   style='mso-ansi-language:EN-GB'>A<o:p></o:p></span></p>   </td>   <td width=28 valign=top style='width:21.3pt;border:solid windowtext .75pt;   border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'><span lang=NL   style='mso-ansi-language:NL'>M<o:p></o:p></span></p>   </td>   <td width=28 valign=top style='width:21.25pt;border:solid windowtext .75pt;   border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'><span lang=NL   style='mso-ansi-language:NL'>J<o:p></o:p></span></p>   </td>   <td width=28 valign=top style='width:21.25pt;border:solid windowtext .75pt;   border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'><span lang=NL   style='mso-ansi-language:NL'>J<o:p></o:p></span></p>   </td>   <td width=38 valign=top style='width:1.0cm;border:solid windowtext .75pt;   border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>A</p>   </td>  </tr>  <tr>   <td width=76 valign=top style='width:2.0cm;border:solid windowtext .75pt;   border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>Pluie (mm)</p>   </td>   <td width=28 valign=top style='width:21.3pt;border-top:none;border-left:none;   border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>24</p>   </td>   <td width=28 valign=top style='width:21.25pt;border-top:none;border-left:   none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>70</p>   </td>   <td width=28 valign=top style='width:21.25pt;border-top:none;border-left:   none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>73</p>   </td>   <td width=28 valign=top style='width:21.25pt;border-top:none;border-left:   none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>110</p>   </td>   <td width=28 valign=top style='width:21.3pt;border-top:none;border-left:none;   border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>64</p>   </td>   <td width=28 valign=top style='width:21.25pt;border-top:none;border-left:   none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>67</p>   </td>   <td width=28 valign=top style='width:21.25pt;border-top:none;border-left:   none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>69</p>   </td>   <td width=28 valign=top style='width:21.25pt;border-top:none;border-left:   none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>53</p>   </td>   <td width=28 valign=top style='width:21.3pt;border-top:none;border-left:none;   border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>41</p>   </td>   <td width=28 valign=top style='width:21.25pt;border-top:none;border-left:   none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>6</p>   </td>   <td width=28 valign=top style='width:21.25pt;border-top:none;border-left:   none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>1</p>   </td>   <td width=38 valign=top style='width:1.0cm;border-top:none;border-left:none;   border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt;   mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt;   padding:0cm 3.5pt 0cm 3.5pt'>   <p class=MsoNormal align=center style='text-align:center'>4</p>   </td>  </tr> </table>  <p class=MsoNormal style='text-align:justify;mso-list:skip'><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify;mso-list:skip'><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span style="mso-spacerun: yes"></span>Evaluer le taux drosion du bassin versant (A) par la relation de Fournier,<span style="mso-spacerun: yes"> </span>sachant ce bassin est  relief accentu et situ sous un climat semi aride ?<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify;mso-list:skip'><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>3 A quelle anne (x)<span style="mso-spacerun: yes"> </span>cette srie de pluie correspond t elle?<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:22.0pt; mso-bidi-font-size:10.0pt;font-family:"Brush Script MT"'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:22.0pt; mso-bidi-font-size:10.0pt;font-family:"Brush Script MT"'>CORRIGE<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><b style='mso-bidi-font-weight: normal'><u><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></u></b></p>  <p class=MsoNormal style='text-align:justify'><u><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>1 La permabilit du bassin versant (A)</span></u><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>Le paramtre<span style="mso-spacerun: yes"> </span>permabilit dun bassin versant (a) est utilis dans la relation de TIXEROULT:<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:4'> </span>E<sub>s</sub> = a R<sup>0,15</sup><b style='mso-bidi-font-weight:normal'><o:p></o:p></b></span></p>  <p class=MsoNormal style='text-align:justify'><b style='mso-bidi-font-weight: normal'><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></b></p>  <p class=MsoNormal style='text-align:justify'><b style='mso-bidi-font-weight: normal'><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>a</span></b><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>: coefficient de permabilit du bassin versant.<b style='mso-bidi-font-weight:normal'><o:p></o:p></b></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>Le coefficient (a) nest que la pente de la droite E<sub>s</sub><span style="mso-spacerun: yes"> </span>= f (R<sup>0,15</sup>)<span style="mso-spacerun: yes"> </span>de la figure ci dessous.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><!--[if gte vml 1]><v:line id="_x0000_s1037"  style='position:absolute;left:0;text-align:left;z-index:6;  mso-position-horizontal-relative:text;mso-position-vertical-relative:text'  from="99.6pt,94.65pt" to="220.35pt,94.7pt" o:allowincell="f" strokeweight="1pt">  <v:stroke startarrow="block" startarrowwidth="narrow" startarrowlength="short"   endarrow="block" endarrowwidth="narrow" endarrowlength="short"/>  <w:wrap anchorx="page"/> </v:line><![endif]--><![if !vml]><span style='mso-ignore:vglayout;position: absolute;z-index:56;left:0px;margin-left:132px;margin-top:122px;width:164px; 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height:80px'><img width=10 height=80 src="./EXTRANS_fichiers/image012.gif" v:shapes="_x0000_s1030"></span><![endif]><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><!--[if gte vml 1]><v:shapetype id="_x0000_t75"  coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe"  filled="f" stroked="f">  <v:stroke joinstyle="miter"/>  <v:formulas>   <v:f eqn="if lineDrawn pixelLineWidth 0"/>   <v:f eqn="sum @0 1 0"/>   <v:f eqn="sum 0 0 @1"/>   <v:f eqn="prod @2 1 2"/>   <v:f eqn="prod @3 21600 pixelWidth"/>   <v:f eqn="prod @3 21600 pixelHeight"/>   <v:f eqn="sum @0 0 1"/>   <v:f eqn="prod @6 1 2"/>   <v:f eqn="prod @7 21600 pixelWidth"/>   <v:f eqn="sum @8 21600 0"/>   <v:f eqn="prod @7 21600 pixelHeight"/>   <v:f eqn="sum @10 21600 0"/>  </v:formulas>  <v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"/>  <o:lock v:ext="edit" aspectratio="t"/> </v:shapetype><v:shape id="_x0000_i1025" type="#_x0000_t75" style='width:295.5pt;  height:227.25pt'>  <v:imagedata src="./EXTRANS_fichiers/image013.wmz" o:title=""/> </v:shape><![endif]--><![if !vml]><img width=394 height=303 src="./EXTRANS_fichiers/image014.gif" v:shapes="_x0000_i1025"><![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>De la figure, on tire<span style="mso-spacerun: yes"> </span><b style='mso-bidi-font-weight:normal'>a= 350,</b> dou le bassin<span style="mso-spacerun: yes"> </span>versant (A) est de<b style='mso-bidi-font-weight:normal'> permabilit faible  moyen. <o:p></o:p></b></span></p>  <p class=MsoNormal style='text-align:justify'><b style='mso-bidi-font-weight: normal'><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></b></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>2 <u>Taux drosion du bassin versant (A)<o:p></o:p></u></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>Daprs lnonc,<span style="mso-spacerun: yes"> </span>pour un climat<span style="mso-spacerun: yes"> </span>trs accentu et situ sous un climat semi aride, la relation de FOURNIER donnant le taux drosion est la suivante:<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal align=center style='text-align:center'><b style='mso-bidi-font-weight: normal'><span lang=DE style='font-size:12.0pt;mso-bidi-font-size:10.0pt; mso-ansi-language:DE'>E<sub>s</sub> = 91,78 ( P<sup>2</sup>/P<sub>O</sub>) - 737,62<u><o:p></o:p></u></span></b></p>  <p class=MsoNormal style='text-align:justify'><span lang=DE style='font-size: 12.0pt;mso-bidi-font-size:10.0pt;mso-ansi-language:DE'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>Du tableau 2, la pluviomtrie maximale est p=110 mm enregistre le mois dcembre. La pluviomtrie moyenne annuelle est P<sub>O</sub>= 582 mm.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>Dou le facteur climatique P<sup>2</sup>/P<sub>O</sub> = 20,8 mm.<o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <div style='border:none;border-top:solid windowtext .75pt;padding:1.0pt 0cm 0cm 0cm'>  <p class=MsoNormal style='text-align:justify;border:none;mso-border-top-alt: solid windowtext .75pt;padding:0cm;mso-padding-alt:1.0pt 0cm 0cm 0cm'><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>Par la relation prcedente, on tire:<o:p></o:p></span></p>  </div>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><span style='mso-tab-count:4'> </span><b style='mso-bidi-font-weight:normal'><span style="mso-spacerun: yes"></span></b></span><b style='mso-bidi-font-weight:normal'><span lang=DE style='font-size:12.0pt; mso-bidi-font-size:10.0pt;mso-ansi-language:DE'>E<sub>s</sub> = 1171 t/km<sup>2</sup>.an<o:p></o:p></span></b></p>  <p class=MsoNormal style='text-align:justify'><b style='mso-bidi-font-weight: normal'><u><span lang=DE style='font-size:12.0pt;mso-bidi-font-size:10.0pt; mso-ansi-language:DE'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></u></b></p>  <p class=MsoNormal style='text-align:justify'><b style='mso-bidi-font-weight: normal'><u><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>3 Anne (x) <o:p></o:p></span></u></b></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>  <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; mso-bidi-font-size:10.0pt'>Cette srie de pluie correspond exactement  lanne hydrologique <b style='mso-bidi-font-weight:normal'>1997/1998. </b>Le taux drosion calcul par la relation de Fournier (E<sub>s</sub>=1171 t/km<sup>2</sup>.an) est exactement le mme que celui donn dans le tableau 1 et qui correspond  lanne 1997/1998.<o:p></o:p></span></p>  </div>  </body>  </html> 
