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## Homework Statement

Constants Given

Colombs constant = 9 x 10^9

Charge of Proton = 1.6 x10^-19

Proton rest mass=1.673 x 10-27

Charge of electron = -1.6 x 10^-19

Electron Rest Mass = 9.11 x 10^-31 kg

## Homework Equations

On the attachement

## The Attempt at a Solution

On the attachement

Can anyone tell me what i did wrong in my attempt to solve the question.