What Is the Net Power That a Person with Surface

question 44

Multiple Choice

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 27°C,and he is in a room that is at a temperature of 17°C? (σ = 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

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