Essay
Recall that Hubble's law is written v = H₀d,where v is the recession velocity of a galaxy located a distance d away from us,and H₀ is Hubble's constant.Suppose H₀ = 55 km/s/Mpc.How fast would a galaxy located 500 megaparsecs distant be receding from us? Show all work clearly,and state your final answer with a complete sentence.Give the speed in units of kilometers per second and as a percentage of the speed of light.
Correct Answer:
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v = H₀d = (55 
(500 Mpc)
=27.5...View Answer
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Correct Answer:
Verified
(500 Mpc)=27.5...
View Answer
Unlock this answer now
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