A strong argument in favor of the theory that the universe is expanding is the observation of the
A) Ratio of helium to hydrogen of .25
B) Red shift of galaxies
C) Cosmic background radiation
D) Existence of quasars
Correct Answer:
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Q29: Which of the following is the best
Q30: Hubble's relationship between the distance to a
Q31: According to current ideas on the evolution
Q32: A galaxy at a distance of 100
Q33: The black hole mass at the center
Q35: How was Hubble able to determine the
Q36: Suppose an astronomer living on a planet
Q37: A collision of two large spiral galaxies
Q38: Hubble's law describes the relationship between
A)Red shift
Q39: Physically,the Hubble constant is a measure of
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