What is the net rate of heat loss on a chilly

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Radiation from the head is a major source of heat loss from the human body. Model a head as a 20-cm-diameter, 20-cm-tall cylinder with a flat top.

If the body's surface temperature is 35?C , what is the net rate of heat loss on a chilly 5?C day? All skin, regardless of color, is effectively black in the infrared where the radiation occurs, so use an emissivity of 0.95.

Reference no: EM13488078

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