Multiple Choice
Which one of the following statements is TRUE about clusters of galaxies?
A) The mass observed in the galaxies of the cluster is about 10 times larger than the amount needed to hold the cluster together,causing the cluster to collapse.
B) The mass observed in the galaxies of the cluster is typically almost exactly equal to that needed to hold the cluster together.
C) The mass observed in the galaxies of the cluster is many thousands of times too small to hold the cluster together.
D) The mass observed in the galaxies of the cluster is about 10 times too small to hold the cluster together.
Correct Answer:
Verified
Correct Answer:
Verified
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