Multiple Choice
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.
Correct Answer:
Verified
Correct Answer:
Verified
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