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diff --git a/2021/CH11/EX11.5/EX11_5.sce b/2021/CH11/EX11.5/EX11_5.sce
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+//Finding of Pressuure gradient.Avg velocity,Discharge,Shear at wall
+//Given
+mu=0.02;
+B=0.01;
+b=1;
+v=2;
+//To Find
+A=B*b;
+dp=-((16*mu)/B^2);
+dp1=-dp;
+V=(B^2/(12*mu))*(-dp);
+q=A*V;
+x=(-dp*(B/2))
+disp(" Pressuure Gradient ="+string(dp1)+" N/m^2 per meter");
+disp(" Avg velocity ="+string(V)+" m/sec");
+disp(" Shear at wall ="+string(x)+" N//m^2");
diff --git a/2021/CH11/EX11.5/Ex11_5.pdf b/2021/CH11/EX11.5/Ex11_5.pdf
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+++ b/2021/CH11/EX11.5/Ex11_5.pdf