Question

What is the approximate volume of the earth? How much larger is Earth than Mars?

Answer 1

Explanation:

The volume of a sphere is defined to be:

`V=(4)/(3) \pi r^3`

Plug in the values for both planets. The radii of the planets was already given:

`V_e=(4)/(3) \pi (6378.1)^3`

`V_e=1.1*10^1^2kg^3`

`V_m=(4)/(3) \pi (3390.0)^3`

`V_m=1.6*10^1^1kg^3`

Earth is this many times larger than Mars:

`(V_e)/(V_m) =(1.1*10^1^2)/(1.6*10^1^1) =6.9`