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Author Question: The cosmic microwave background is: A) redshifted in the direction of Earth's motion. B) ... (Read 30 times)

Charlie

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on: Jul 27, 2018
The cosmic microwave background is:
 
  A) redshifted in the direction of Earth's motion.
  B) redshifted in the direction of the Sun's motion.
  C) redshifted in the direction of the center of the Milky Way.
  D) blueshifted in the direction of Earth's motion.
  E) blueshifted in the direction of the Virgo Cluster.

Question 2

If the Sun were replaced by a one solar mass black hole:
 
  A) all terrestrial planets would fall in immediately.
  B) we would still orbit it in a period of one year.
  C) we would immediately escape into deep space, driven out by its radiation.
  D) our clocks would all stop.
  E) life here would be unchanged.


johnharpe

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

D

Answer to Question 2

B


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