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A) As our bodies burn food as fuel, we radiate energy. Assume a person has a body surface area of 1.80 m2 and an emissivity of 0.620 (a reasonable value for someone wearing clothes). What is the power radiated by the person? (Normal body temperature is 37.0A?°C.) ___ W

B) A light bulb filament has an emissivity of 0.29. At a temperature of 2790 K, the filament radiates 55 W of power. What is the surface area of the filament? ___ m^2

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