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Author Question: Which of the following would be the best radiator of thermal energy? A) a shiny surface B) a ... (Read 94 times)

joesmith1212

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on: Jul 27, 2018
Which of the following would be the best radiator of thermal energy?
 
  A) a shiny surface
  B) a perfectly white surface
  C) a perfectly black surface
  D) a metallic surface
  E) styrofoam

Question 2

A boy jumps at a speed of 20.0 m/s at an angle of 25.0 above the horizontal. What is the horizontal component of the boy's velocity?
 
  A) 18.1 m/s
  B) 15.6 m/s
  C) 8.5 m/s
  D) 12.6 m/s
  E) 20.0 m/s


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JYan

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Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

A


joesmith1212

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Reply #2 on: Jul 27, 2018
Thanks


JYan

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Reply #3 on: Jul 27, 2018
Welcome :)


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