The Hubble time is
A) the time it takes a galaxy moving at 1000 km/s to move 1 Mpc.
B) the time it takes the galaxy to double its size.
C) the time since recombination occurred.
D) the time remaining before the Universe stops expanding and begins to contract.
E) an estimate of the age of the Universe based on the Hubble constant.
Correct Answer:
Verified
Q1: The assumption of isotropy states that
A)the Universe
Q2: In the late 1990's, it was discovered
Q4: The assumption of homogeneity states that
A)the Universe
Q5: Dark energy is the name of the
A)force
Q6: What was the temperature of the Universe
Q7: The cosmic background radiation comes from a
Q8: If the Universe is closed and finite,
Q9: The resolution of Olbers's paradox suggests that
Q10: As the Universe cooled, it eventually reached
Q11: Space-time will be flat if
A)the Universe is
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