Part A

$A+2\mathrm{.}2nC$ charge is at the origin and a $-5\mathrm{.}0nC$

charge is at $x=1\mathrm{.}4cm.$

At what $x-$coordinate could you place a proton so that it would experience no net force?

Express your answer with the appropriate units.

View Available Hint$($s$)$

Hint $1.$ How to approach the problem

Assume you have point charges. Use Coulomb's law to write an expression for the forces due to each charge

acting on the proton at position $x.$ Apply the force equilibrium condition for the proton and determine $x.$ Verify

your answer by reviewing the directions of the forces at the found position.

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