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3 charges on (x,y) plane
q1(at origin) = 2nC
q2 (0,7) = -3nC
q3 (9,0) = -6nC

What is the magnitude of the resulting
force (in nano-Newtons) on the 2 nC charge
at the origin? The Coulomb constant is
8.98755 × 10
9
N · C
2
/m
.
Answer in units of nN

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