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

A proton, an alpha particle, an electron, and a neutron are at rest at the corners of a square whose side length is 4.00×10^-10 m with the electron and neutron at opposite corners.

How minimum an amount of work must be done to move the particles far from each other?

2. Relevant equations

Use 8.85×10^-12 F/m for the permittivity of free space and 1.60×10^-19 C for the charge on an electron.

[tex] KE_{i} = PE_{f} [/tex]

[tex] \frac {1} {2} * m_{p} * v_{i}^2 = \frac {1} {4*pi*8.85*10^{-12}} * \frac {Q^2} {R} [/tex]

3. The attempt at a solution

I'm not exactly sure what we're trying to solve for. I was wondering if someone could clarify the problem

**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!

# Work to move Electron & Nuetron

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