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Author Question: These objects are no longer considered a good explanation for the dark matter in the halo. A) ... (Read 6 times)

berenicecastro

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on: Jul 27, 2018
These objects are no longer considered a good explanation for the dark matter in the halo.
 
  A) WIMPs
  B) MACHOs
  C) black holes
  D) clouds of cool, neutral hydrogen
  E) brown dwarfs

Question 2

Mars is best viewed from Earth when it is at:
 
  A) perihelion.
  B) opposition.
  C) conjunction.
  D) aphelion.
  E) None of the above.


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Joc

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

D

Answer to Question 2

B


berenicecastro

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Reply 2 on: Jul 27, 2018
Gracias!

tranoy

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Reply 3 on: Yesterday
Wow, this really help

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