(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

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# Homework Help: Work to move Electron & Nuetron

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