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//Given that
R = 2*10^-2 //in meter
n = 500 //number of bees
t = 20*60 //in sec
e = .80
T1 = 35 + 273 //in K
T2 = 47 + 273 //in K
sigma = 5.67*10^-8 //in W/m^2
//Sample Problem 19-7
printf("**Sample Problem 19-7**\n")
A = 4*%pi*R^2
Eaddi = sigma*e*A*(T2^4 - T1^4)*t //for n bees
E = Eaddi/n
printf("The additional energy produced by each bee is equal to %fJ", E)
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