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//ques-19.11
//Calculating wavelength of a tennis ball
clc
m=6*10^-2;//mass of ball (in kg)
v=62;//velocity (in m/s)
h=6.63*10^-34;//(in Js)
w=h/(m*v);
printf("The wavelength of the tennis ball is %.2f*10^-34 m.",w*10^34);
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