$14\%)$ Problem $5$: A positively charged particle $Q_1=+15nC$ is held at fixed position. A second charge of mass $m=8\mathrm{.}5g$ is located a distance $d=15cm$ directly above charge $Q_1.$ The net force on $Q_2$ is qual to zero. You may assume this system is close to the surface of the Earth.

tover, Calissa $-$

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