Multiple Choice
Estimate the speed of a galaxy away from us if it is 10 billion light-years from us and if the Hubble constant is 22 km/s per million light-years. (c = 3.00 × 108 m/s, 1 ly = 9.461 × 1015 m, 1 y = 3.156 × 107 s)
A) 0.1c
B) 0.3c
C) 0.5c
D) 0.7c
E) 0.9c
Correct Answer:

Verified
Correct Answer:
Verified
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