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Author Question: By casually glancing at a scene on your TV you are A) affecting the image. B) participating in ... (Read 53 times)

washai

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on: Jul 29, 2018
By casually glancing at a scene on your TV you are
 
  A) affecting the image.
  B) participating in the action on the screen.
  C) both of these
  D) neither of these

Question 2

How much power does a sphere with a radius of 10 cm radiate if is has an emissivity e = 1.0 and is kept at a temperature of 400 K? The Stefan-Boltzmann constant is 5.67 x 10-8 W/(m2K4).
 
  A) 60 W
  B) 70 W
  C) 180 W
  D) 210 W
  E) 360 W


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katara

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

Answer: D

Answer to Question 2

C


washai

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Reply 2 on: Jul 29, 2018
Wow, this really help

Viet Thy

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Reply 3 on: Yesterday
Excellent

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