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clc
clear
//Input data
n=2.25*10^-4;//The viscosity of the gas in dynes/cm^2
C=4.5*10^4;//The RMS velocity of the molecules in cm/s
d=10^-3;//The density of the gas in g/cc
//Calculations
L=(3*n)/(d*C);//The mean free path of the molecules in cm
//Output
printf('The mean free path of the molecules is %3g cm ',L)
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