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// Problem no 15.2,Page no.352
clc;clear;
close;
D=0.8 //m //iameter of water main
h=100 //m //Pressure head
w=10*10**3 //N/m**3 //Weight of Water
sigma_t=20*10**6 //MPa //Permissible stress
//Calculation
p=w*h //N/m**2 //Pressure of inside the main
t=p*D*(2*sigma_t)**-1*100 //m //Thcikness of metal
//Result
printf("The Thickness of metal is %.2f",t);printf(" cm")
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