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Author Question: What is the net power that a dog with surface area of 0.075 m2 radiates if his emissivity is 0.75, ... (Read 106 times)

dbose

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on: Jul 29, 2018
What is the net power that a dog with surface area of 0.075 m2 radiates if his emissivity is 0.75, his skin temperature is 315 K, and he is in a room with a temperature of 290 K? The Stefan-Boltzmann constant is 5.67  10-8 W/(m2K4).
 
  A)
 
  8.8 W
 
  B)
 
  6.0 W
 
  C)
 
  8.0 W
 
  D)
 
  15 W
 
  E)
 
  18 W

Question 2

The energy transported by a wave is proportional to the square of the frequency of the wave.
 
  Indicate whether the statement is true or false


cassie_ragen

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Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

TRUE


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