Suppose that you measure a galaxy's redshift, and from the redshift you determine that its recession velocity is 30,000 (3×10^4) kilometers per second. according to hubble's law, approximately how far away is the galaxy?

1.4 billion light years away

Explanation:

v = Recessional velocity = 30000 km/s[/tex]

= Hubble constant =

D = Distance to the galaxy

According to Hubble's law

The galaxy is 1.4 billion light years away

speed

ratio of distance traveled to time interval

net force

vector sum of forces on object

object

source of diverging light rays either luminous or illuminated

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explanation: