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Author Question: You observe a distant galaxy. You find that a spectral line of hydrogen that is shifted from its ... (Read 38 times)

joesmith1212

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on: Jul 27, 2018
You observe a distant galaxy. You find that a spectral line of hydrogen that is shifted from its normal location in the visible part of the spectrum into the infrared part of the spectrum. What can you conclude?
 
  A) The galaxy is moving away from you.
  B) The galaxy is moving towards you.
  C) The galaxy has very weak gravity.
  D) The galaxy is made purely of hydrogen.

Question 2

Zeros at the end of a number after the decimal point are not significant.
 
  Indicate whether the statement is true or false


beccamahon

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

A

Answer to Question 2

FALSE


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