Multiple Choice
You observe two galaxy clusters, cluster A and cluster B.If the outer galaxies of both clusters have the same circular velocities, but cluster A has twice the mass of cluster B, then the size of cluster A must be
A) 4 times that of cluster B.
B) one-fourth that of cluster B.
C) twice that of cluster B.
D) half that of cluster B.
E) the same as cluster B.
Correct Answer:
Verified
Correct Answer:
Verified
Q70: Which of the following must be true
Q71: Name and describe one candidate for hot
Q72: Which of these lists shows the correct
Q73: An astronomer wants to study the
Q74: At what redshift would a quasar's
Q76: The most distant galaxies detected at z
Q77: What was temperature and wavelength of the
Q78: Each of these statements describes the steps
Q79: Which of the following statements about galaxy
Q80: How are the observed properties of the