What Is the Net Power Radiated by a Little Animal

question 4

Multiple Choice

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? (σ = 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

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