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Author Question: The fact that the Earth has moved along its orbit in the time it took to rotate once is the reason ... (Read 127 times)

saraeharris

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on: Jul 27, 2018
The fact that the Earth has moved along its orbit in the time it took to rotate once is the reason for
 
  A) the position of the Celestial Equator.
  B) precession.
  C) the difference between solar and sidereal time.
  D) Earth's 23.5-degree tilt.
  E) seasons.

Question 2

In which wavelength region(s) would we need to carry out observations in order to study the accretion disk around a white dwarf in a binary system?
 
  A) visible light
  B) ultraviolet light
  C) X-ray light
  D) A and B
  E) B and C


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lorealeza77

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

C

Answer to Question 2

E


saraeharris

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Reply 2 on: Jul 27, 2018
Excellent

rachel

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Reply 3 on: Yesterday
:D TYSM

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