If a galaxy has a radial velocity of 8000 km/sec and the Hubble constant is 70 km/sec/Mpc,what is the distance to this galaxy?
A) 8.75´103 Mpc
B) 2.4´109 Mpc
C) 5.6´105 Mpc
D) 114 Mpc
E) 8.75´10-3 Mpc
Correct Answer:
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A) mostly lower-main sequence
Q8: Astronomers now speculate that a galaxy's shape
Q9: A megaparsec is equivalent to
A) 3.26 light-years.
B)
Q10: We should expect galaxies to collide with
Q11: If H equals 50 km/sec/Mpc,then a galaxy
Q13: The mass of a single galaxy might
Q14: An E galaxy contains
A) mostly lower-main sequence
Q15: The most massive galaxies are
A) spiral galaxies.
B)
Q16: Super massive black holes in galaxies
A) are
Q17: Which of the following could NOT be
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