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clc();
clear;
// To calculate the length of the well
d = 0.06/12; // diameter of the thermometer in ft
h = 18.5; // heat teansfer coefficient in Btu/hr-ft^2-F
k = 32; // Thermal conductivity in Btu/hr-ft^2-F
s = 0.036/12; // thickness of wall in ft
m = sqrt(h/(k*s)); // parameter
// Error is less than 0.05% of the dfference between the gas temperature and the tube well temperature. Hence a=m*l
a = 6; // a=m*l
l = a/m; // Length of well in ft
printf("The length of well is %.2f ft",l)
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