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+clc;
+clear all;
+disp("Total power required")
+L=50;//m
+D=5;//m
+U=8;//m/s
+ta=20;// degree C
+rho=1030;//kg/m^3
+v=10^(-6);//m^2/s
+ReL=U*L/v;
+Rex=5*10^5;
+x=Rex*v/U;
+Cf=0.455/(log10(ReL))^2.58;
+A=%pi*D*L;//m^2
+Fd=Cf*0.5*rho*A*U^2;
+P=Fd*U/1000;//kW
+disp("kW",P,"Power required =")