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Author Question: Which of the following has units of momentum? A) N-m B) kg-s/m C) kg-m2/s D) J-s/m E) kg- ... (Read 21 times)

shofmannx20

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on: Jul 27, 2018
Which of the following has units of momentum?
 
  A) N-m
  B) kg-s/m
  C) kg-m2/s
  D) J-s/m
  E) kg- /

Question 2

Why is it better to search for extrasolar planets directly using infrared (IR) rather than visible radiation?
 
  A) the planet doesn't reflect any visible radiation, only IR radiation
  B) the star doesn't emit any IR radiation because it is too hot
  C) the visible light from planets will be blocked by interstellar dust along our line of sight while the IR radiation will not
  D) the planet emits more IR radiation than it reflects in the visible


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ecox1012

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

D

Answer to Question 2

D


shofmannx20

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Reply #2 on: Jul 27, 2018
Thank you!


ecox1012

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Reply #3 on: Jul 27, 2018
Always glad to help...


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