Galaxies move away from us in all directions because
A) the force of gravity increases with distance.
B) the force of gravity weakens with distance.
C) space is expanding, and there is no center to the universe.
D) space is expanding, and we are near (but not at) the center of the universe.
E) we are at the center of the expansion of the universe.
Correct Answer:
Verified
Q12: If we lived in a galaxy 1
Q14: All distant galaxies appear to be moving
Q15: Distant Galaxy A has a larger redshift
Q16: That "the physical laws and the properties
Q18: As measured from Earth, the spectrum of
Q19: Astronomers use galactic redshift as a measure
Q20: Hubble's constant, H0, represents the
A) rate of
Q21: Galaxy peculiar velocities are typically about 300
Q22: Cosmological redshift is redshift due to
A) the
Q31: According to Hubble's law, as the distance
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