Homework Help: physics

Posted by Anonymous on Friday, February 15, 2013 at 12:30am.

Three charges are located on a horizontal axis.
12 µC −0.8 µC 12 µC
p
1.69656 m
2.9 m 2.9 m
Determine the magnitude of the electric
ﬁeld at p, vertically above the charge −0.8 µC
as shown in the ﬁgure. Let up be the positive direction. The Coulomb constant is
8.98755 × 10
9
N · m2
/C
2
.
Answer in units of V/m

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