The human body has a core temperature of 37C, or 310K. Assume the human body is

Question

The human body has a core temperature of 37C, or 310K. Assume the human body is a blackbody (a good approximation). a)What is the power of the thermal radiation of a human whose surface are is 1.45m2? Use 31oK for the temperature in Equation from the picture:

Stefan-Boltzmann Law of Thermal Radiation The thermal radiation emitted by an object at absolute temperature T carries energy from the object at a rate P given by where A is the object's surface area and e is its emissivity, which depends on the material. The constant is called the Stefan-Boltzmann constant and has a value of = 5.67x10"W/m2-K4.

Explanation / Answer

P = 1 * (5.67 * 10-8) * 1.45 * 3104 = 759.3 W

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