How to Calculate the Recessional Velocity of a Galaxy 500 Mpc Away?

[James Beedy]

Homework Statement

I need help in understanding how to find the recessional velocity of a galaxy

Relevant Equations

500 Mpc /

I need to calculate the recessional velocity of a galaxy 500 Mpc away. I need to express my answer in KM, distance in speed, age of the universe in seconds and years.

 

[phyzguy]

Have you studied Hubble's Law?

 

[James Beedy]

A little but I don't understand how the problem is set up to do it.

 

[phyzguy]

A little but I don't understand how the problem is set up to do it.

If you've studied it "a little", what does it say?

 

[James Beedy]

Thanks for your help!