a person eats a dessert that contains 255 kilocalories. the skin temperature of this individual is 36°c and her environment is 2.0\times10^{1}°c. the emissivity of her skin is 0.77 and its surface area is 1.6 m2. how much time would it take her to emit radiant energy from her body that is equal to the energy contained in the dessert?
