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Author Question: If we represent the Milky Way Galaxy as the size of a grapefruit, the distance to the Andromeda ... (Read 82 times)

Medesa

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on: Jul 27, 2018
If we represent the Milky Way Galaxy as the size of a grapefruit, the distance to the Andromeda Galaxy would be about
 
  A) 3 cm. B) 3 km. C) 30 m. D) 3 m. E) 300 km.

Question 2

From studies of the rotations of galaxies and dynamics of clusters, we now think that about ________ of the mass of the universe is composed of dark matter.
 
  Fill in the blank(s) with correct word


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chreslie

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

D

Answer to Question 2

90


Medesa

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Reply 2 on: Jul 27, 2018
Excellent

xiazhe

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Reply 3 on: Yesterday
:D TYSM

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