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Author Question: The force of kinetic friction between two surfaces is independent of the area of contact between the ... (Read 40 times)

penza

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on: Jul 29, 2018
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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Reply #1 on: Jul 29, 2018
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

ricroger

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Reply 3 on: Yesterday
Wow, this really help

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