Question

I hope you guys can help me​

Answer 1

a) The value of
`n` is 81.30.

b) The value of
`n` is 81.

Explanation:

a) The value of
`n` is the ratio of the mass of the Earth to the mass of the Moon. That is:

`n = (5.972* 10^(24)\,kg)/(7.346* 10^(22)\,kg)`

`n = 81.30`

The value of
`n` is 81.30.

b) If
`n` is a integer, then the result must have only two significant figures. Given the result, we must approximate to the closest integer. That is:

`n = 81`

The value of
`n` is 81.