- #1

_Mayday_

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**The Question**

One possible value for the Hubble constant is 65Kms Mpc. Calculate in Mpc, the distance from Earth for agalaxy trallening at the speed of light, [itex]3.0\times10^{8}[/itex]

**Attempt**

[itex]v=Hd[/itex]

[itex]v=3\times10^8[/itex]

[itex]H= 65Km s Mpc[/itex]

First I will convert the constant to ms so that I have both in S.I. units.

[itex]v=3\times10^8 ms[/itex]

[itex]H= 6.5 \times10^4 ms Mpc[/itex]

Now I will just plug these values in!

[itex]\frac{3\times10^8}{6.5 \times10^4} = 4.6\times10^4 Mpc[/itex]

**Question**

State what this distance represents.

**Answer**

This is the distance the galaxy is away from earth?

**_Mayday_**