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Author Question: Most active galactic nuclei are powered by: A) supermassive black holes. B) a large number of ... (Read 69 times)

NClaborn

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on: Jul 27, 2018
Most active galactic nuclei are powered by:
 
  A) supermassive black holes.
  B) a large number of supernovae.
  C) mergers of compact objects.
  D) black hole mergers.
  E) extra-terrestrial civilizations.

Question 2

How does the density of Jupiter compare to the terrestrial planets?
 
  A) It is denser than all the terrestrial planets combined.
  B) It is denser than the Moon, but less dense than any of the others.
  C) Its density is slightly less than Mercury, but more than Mars.
  D) Its density is about the same as Mars.
  E) Its density is less than any terrestrial.


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debra928

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

A

Answer to Question 2

E


NClaborn

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Reply 2 on: Jul 27, 2018
Excellent

xiaomengxian

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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