According to hubble’s law, what is the recessional velocity of a galaxy that is 108 light-years away from us? (assume a hubble constant of 22 km/s per million light-years.)

the recessional velocity of the galaxy is 2.736×10^-3 km/s

Explanation:

for the recessinal velocity of the galaxy as v and d being the distance of the galaxy from us and H as the hubble constant, then hubbles law says:

v = H×d

  = (22 km/s per million light years)×108 light years

  = (2.2×10^-5 km/s per light years)×108 light years

  = 2.376×10^-3 km/s

Therefore, the recessional velocity of the galaxy is 2.736×10^-3 km/s

false

explanation:

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