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Author Question: The rotation curve method can be applied only to pairs of galaxies orbiting each other. a. True ... (Read 73 times)

silviawilliams41

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on: Jul 27, 2018
The rotation curve method can be applied only to pairs of galaxies orbiting each other.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

Before it ejects a planetary nebula, a star is a
 
  a. red giant.
  b. black hole.
  c. white dwarf.
  d. supernova.


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Fayaz00962

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

False

Answer to Question 2

a


silviawilliams41

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Reply 2 on: Jul 27, 2018
Wow, this really help

nathang24

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Reply 3 on: Yesterday
Excellent

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