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//Example 8_9
clc();
clear;
//To calculate the natural frequency of ultrasonic waves
l=5.5*10^-3 //units in meters
Y=8*10^10 //units in N/m^2
d=2.65*10^3 //units in kg/m^3
v=(1/(2*l))*sqrt(Y/d)
printf("The natural frequency of ultrasonic waves is %.0f",v)
//In textbook answer printed wrong as 499 correct answer is 499493
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