Problem $23\mathrm{.}46$

$20$ of $22$

Review

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Constants

Introduction

A point charge q$1=5\mathrm{.}00$Cq$1=5\mathrm{.}00$C is held fixed in space. From a horizontal distance of $8\mathrm{.}00$ cmcm$,$ a small sphere with mass $4\mathrm{.}00103$kg$4\mathrm{.}00103$kg and charge q$2=+2\mathrm{.}00$Cq$2=+2\mathrm{.}00$C is fired toward the fixed charge with an initial speed of $44\mathrm{.}0$ m$/$sm$/$s$.$ Gravity can be neglected.

Part A

What is the acceleration of the sphere at the instant when its speed is $28\mathrm{.}0$ m$/$sm$/$s$?$

Express your answer with the appropriate units.

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aa $=$

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