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Author Question: Suppose that Hubble's constant were 20 kilometers per second per million light-years. How fast would ... (Read 143 times)

Themember4

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on: Jul 27, 2018
Suppose that Hubble's constant were 20 kilometers per second per million light-years. How fast would we expect a galaxy 100 million light-years away to be moving? (Assume the motion is due only to Hubble's law.)
 
  A) away from us at 20,000 km/s B) away from us at 200 km/s
  C) away from us at 2,000 km/s D) toward us at 2,000 km/s

Question 2

Stellar masses are determined by observing ________ stars.
 
  Fill in the blank(s) with correct word


Galvarado142

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

C

Answer to Question 2

binary


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