Finding the Distance Between Electrons in Equilibrium: What is the Solution?

[johnnico6426]

Homework Statement

An electron is released above the Earth's surface. A second electron directly below it exerts just enough of an electric force on the first electron to cancel the gravitational force on it. Find the distance between the two electrons.

Homework Equations

The Attempt at a Solution

 

[rohanprabhu]

Don't expect to receive any help until you show us something you've done.. or something you've thought about this problem and the way in which it COULD be solved in.

 

[Hootenanny]

Welcome to PF John,

The forum rules require one to present one's own attempts or thoughts before asking for assistance. So, what have you attempted thus far?