Multiple Choice
Via the rotation curve method,we can estimate the mass of galaxies like M31 from
A) Doppler shifts of material at the edge of its disk and computing P=2pi r /v.
B) the distances of the Doppler shift points from its center
C) both answers A and B.
D) It is impossible to estimate the mass of M31.
Correct Answer:
Verified
Correct Answer:
Verified
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