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//clc();
clear;
//To determine the natural frequency of iron
l=40*10^(-3); //length of pure iron rod in metres
rho=7.25*10^3; //density of pure iron in kg/m^3
Y=115*10^9; //youngs modulus in N/m^2
new=(sqrt(Y/rho))*10^(-3)/(2*l);
printf("the natural frequency of pure iron is %f KHz",new);
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