Question

What is the general relationship between a galaxy's distance from earth and its speed?

Answer 1

Hubble law explains the recessional velocity and distance.

Explanation:

V= Ho x D
where V= recessional ve;velocity
Ho=Hubble constant.
Present value of Hubble constant= 73 kilometer /second /mega parsecs.
In simple terms the more away the galaxy is it s recessional speed is greater,