8. If a galaxy has an apparent radial velocity of 2000 km/s and the Hubble constant is 72 km/s/Mpc, how far away is the galaxy? Assuming this distance and a constant radial velocity, how long did it take the galaxy to travel that distance?

Q: 18. 4 Ω 12 V 1₁ 12 Ω |24 V 13 www 8Ω.

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