A thin conducting square plate $1\mathrm{.}0m$ on the side is given a charge of $-2\mathrm{.}0{10}^{-6}C.$ A proton is placed $1\mathrm{.}0cm$ above the center of the plate. What is the acceleration of the proton?

$($Enter the magnitude in $\frac{m}{s^2}.)$

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