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Author Question: The force of kinetic friction between two surfaces is independent of the area of contact between the ... (Read 28 times)

penza

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The force of kinetic friction between two surfaces is independent of the area of contact between the surfaces.
 
  Indicate whether the statement is true or false

Question 2

Astronomers can tell whether a light source approaches or recedes from Earth by
 
  A) its temperature.
  B) its change in temperature.
  C) its absorption spectra.
  D) the Doppler effect.
  E) all of the above



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olivia_paige29

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Answer to Question 1

TRUE

Answer to Question 2

Answer: D




penza

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Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it


flexer1n1

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Reply 3 on: Yesterday
Gracias!

 

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