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Author Question: While our two companions, the Magellanic Clouds, are irregulars, Andromeda's two companions, M-32 ... (Read 42 times)

tnt_battle

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on: Jul 27, 2018
While our two companions, the Magellanic Clouds, are irregulars, Andromeda's two companions, M-32 and M-110, are dwarf ellipticals.
 
  Indicate whether the statement is true or false

Question 2

What is the most likely reason that there are no giant planets beyond Neptune?
 
  A) Any planets forming beyond Neptune would have drifted out of the solar system due to the weakness of the Sun's gravity at this distance.
  B) There was no material to create planetesimals beyond the orbit of Neptune.
  C) By the time planetesimals grew to a large enough mass to hold onto an atmosphere, the solar nebula had been blown away.
  D) Any planet forming beyond Neptune's orbit would have been scattered outside of the solar system by gravitational encounters.
  E) There may be, but they would be so faint that astronomers have not found them yet.


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canderson530

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

TRUE

Answer to Question 2

C


tnt_battle

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Reply 2 on: Jul 27, 2018
Gracias!

cam1229

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Reply 3 on: Yesterday
Excellent

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