The earth takes 1 year to revolve around the sun at 1 a. u. distance (an astronomical unit = 93,000,000 miles). if a planet were 4 a. u. from the sun, how many years would it take to make 1 orbit?

8 years

Explanation:

We can solve the problem by using Kepler's third law, which states that the cube of the radius of the orbit of a planet is proportional to the square of its orbital period. We can rewrite this law as follows:

where

is the distance of the Earth from the Sun

is the Earth's orbital period

is the distance of the planet from the Sun

is its orbital period

By re-arranging the equation and substituting the numbers, we can find T2:

multiply 2kg by latent heat of vap

do you have a formula possibly