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Author Question: The closest planet to Earth is a. Mars. b. Venus. c. Mercury. d. ... (Read 53 times)

darbym82

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The closest planet to Earth is
 a. Mars.
  b. Venus.
  c. Mercury.
  d. Saturn.

Question 2

A Doppler red shift indicates
 a. a shift toward higher frequencies.
  b. a shift toward shorter wavelengths.
  c. that a light source is receding relative to the observer.
  d. none of these.



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lkoler

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Answer to Question 1

b

Answer to Question 2

c




darbym82

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Reply 2 on: Jul 28, 2018
:D TYSM


amynguyen1221

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Reply 3 on: Yesterday
Wow, this really help

 

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