Multiple Choice
Evidence for dark matter is exhibited by the
A) relatively similar speeds at which all stars in a galaxy orbit the galactic nucleus.
B) speed at which galaxies orbit one another within clusters.
C) degree to which galaxy clusters exhibit gravitational lensing effects.
D) All of the above
Correct Answer:
Verified
Correct Answer:
Verified
Q19: Light bends when it<br>A)passes a massive star.<br>B)passes
Q43: Spacetime is curved by<br>A)mass.<br>B)the force of gravity.<br>C)quantum
Q44: According to relativity theory,it is possible to
Q45: How is it possible that today's diverse
Q46: What Einstein discovered about space and time
Q49: The currently accepted reasoning for why the
Q50: The theory of dark energy tells us
Q51: Edwin Hubble discovered that the farther away
Q52: As a blinking light source approaching you
Q53: Technically,its not mass that causes the curvature