23. ssm A person is standing outdoors in the shade where the tempera-ture is 28 °C. (a) What is the radiant energy absorbed per second by hishead when it is covered with hair? The surface area of the hair (assumedto be flat) is 160 cm? and its emissivity is 0.85. (b) What would be theradiant energy absorbed per second by the same person if he were baldand the emissivity of his head were 0.65?

Temperature, T = 28°C = 301 K Area, A = 160 cm2 emissivity of hair, e = 0.85 emissivity of bald, e…

Answered: 23. ssm A person is standing outdoors…

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

Chapter17: Energy In Thermal Processes: The First Law Of Thermodynamics

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Problem 74P

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