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 = 20 km/s/Mly. How fast would a galaxy 1000 Mly distant be receding from us?
A) 20,000 km/s
B) 20 Mly/s
C) 0.20 times the speed of light
D) 50 km/s
E) 20 km/s
A
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What will be an ideal response?
At sea level, at a latitude where 
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