What is the net power that a person with surface area of 1.20 m2 radiates if his emissivity is 0.895, his skin temperature is 300 K, and he is in a room that is at a temperature of 290 K? The Stefan-Boltzmann constant is 5

67 × 10-8 W/(m2?K4). A)

60.3 W

B)

62.6 W

C)

65.7 W

D)

68.4 W

E)

64.8 W


B

Physics & Space Science

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