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A person eats a dessert that contains 190 Calories. (This "Calorie" unit, with a capital C,...

A person eats a dessert that contains 190 Calories. (This "Calorie" unit, with a capital C, is the one used by nutritionists; 1 Calorie = 4186 J. See Section 12.7.) The skin temperature of the person is 35 °C and that of her environment is 18 °C. The emissivity of her skin is 0.83 and its surface area is 1.0 m2. How many hours would it take her to emit a net radiant energy from her body that is equal to the energy contained in this dessert?

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