Radiation: What is the net power radiated by a little animal with a surface area of 0.075 m2 if his emissivity is 0.75, his skin temperature is 315 K, and he is in a room with a temperature of 290 K? (? = 5.67 × 10-8 W/m2 ? K4)
A. 8.8 W
B. 6.0 W
C. 8.0 W
D. 15 W
E. 18 W
Answer: A
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