Multiple-Concept Example 8 reviews the approach that is used in problems such as this. A person eats a dessert that contains 180 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 38 °C and that of her environment is 16 °C. The emissivity of her skin is 0.77 and its surface area is 1.5 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? PA figure shows emitted heat T from a person and the heat from the environment T subscript o absorbed by the person.

Multiple-Concept Example 8 reviews the approach that is used in problems such as this. A person eats a dessert that contains 180 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 38 °C and that of her environment is 16 °C. The emissivity of her skin is 0.77 and its surface area is 1.5 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? PA figure shows emitted heat T from a person and the heat from the environment T subscript o absorbed by the person.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter16: Temperature And The Kinetic Theory Of Gases

Section: Chapter Questions

Problem 11OQ

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