Physics, 30.04.2021 21:10 kisses1131953
The fact that the galaxies are rotating at about the same velocity from the center to the edge as opposed to faster near the centers is evidence that ..
a. there must be more gravity than that calculated from normal Mass
b. they are rotating slower over time
c. dark energy is pulling on them
d. they are measuring the velocities incorrectly
Answers: 1
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