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ID: 2119709 • Letter: #
Question
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Assuming your skin temperature is 37.2 %u2218C and the temperature of your surroundings is 21.8%u2218, determine the length of time required for you to radiate away the energy gained by eating a 289-Calorie ice cream cone. Let the emissivity of your skin be 0.915 and its area be 1.25m2 . ( t=?h)
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PLEASE ANSWER CORRECTLY: ANSWER 1: i have tried but all answers below are wrong
Deduction: -3%
Explanation / Answer
t=(289*4186)/(0.915*5.67 x10^-8*1.25*[310.35^4 - 294.95^4]
=10916.9 sec
=10916.9/3600 hr
=3.032 hr
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