Two point charges are located on the $y$ axis as follows: charge $q_1=-1\mathrm{.}90nC$ at $y_1=-0\mathrm{.}600m,$ and charge $q_2=4\mathrm{.}10nC$ at the origin $=0).$

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What is the magnitude of the net force exerted by these two charges on a third charge $q_3=9\mathrm{.}00nC$ located at $y_3=-0\mathrm{.}200m?$

Express your answer in newtons.

$F_{\text{n}\text{e}\text{t}}=,N$

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Part B

What is the direction of the net force?

The net force is in $+y$ direction.

The net force is in $-$ y direction

The net force is in $-x$ direction.