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## Homework Statement

Two protons are aimed directly toward each other by a cyclotron accelerator with speeds of 1350 km/s, measured relative to the earth.

Find the maximum electrical force that these protons will exert on each other.

## Homework Equations

Mass of Proton [tex] 1.67 * 10 ^{-27} [/tex]

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

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

## The Attempt at a Solution

I'm not sure where to go from here.