1. The problem statement, all variables and given/known data(adsbygoogle = window.adsbygoogle || []).push({});

I am trying to find the easiest and simplest way of calculating the distance that two celestial bodies would need to be apart, in order for those celestial bodies to never get closer or further away from each other. I have the values of the mass, density, radius, volume and gravity of the two celestial bodies, is it possible to use the values I have to work out how far apart they would need to be to remain in a state of equilibrium?

2. Relevant equations

There are no relevant equations I know of, sorry. But if it helps, I am happy to also know how to work out the gravitational force exerted between two objects that would keep those two objects at a constant distance from each other.

3. The attempt at a solution

This one has me stumped. Thanks for any and all help. Please keep answers as simple as possible :D

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Equilibrium between different masses

**Physics Forums | Science Articles, Homework Help, Discussion**