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Author Question: Cosmological redshift is the result of A) the high speeds at which galaxies move within clusters. ... (Read 70 times)

charchew

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on: Jul 27, 2018
Cosmological redshift is the result of
 
  A) the high speeds at which galaxies move within clusters.
  B) the expansion of the universe.
  C) very old, red stars in distant galaxies.
  D) supermassive black holes.

Question 2

For nearby spirals, their rotation curves help measure both light and dark matter.
 
  Indicate whether the statement is true or false


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Tonny

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

B

Answer to Question 2

TRUE


charchew

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Reply #2 on: Jul 27, 2018
TY


Tonny

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Reply #3 on: Jul 27, 2018
You're welcome


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