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Homework Statement
Two point charges are placed on the x axis. The first charge, q1 = 8.00 nC , is placed a distance 16.0 m from the origin along the positive x axis; the second charge, q2 = 6.00 nC , is placed a distance 9.00 m from the origin along the negative x axis.
Photo shown by problem:
http://imgur.com/mmQtBk0
Find the electric field at the origin, point O.
Give the x and y components of the electric field as an ordered pair. Express your answer in newtons per coulomb to three significant figures. Keep in mind that an x component that points to the right is positive and a y component that points upward is positive.
Homework Equations
Presumably, E=(q/r^2)k
The Attempt at a Solution
What I can't seem to manage here is the Y component. I have used the relevant equation above and calculated the negative side and the positive side and subtracted the magnitude of the negative from the magnitude of the positive to find the X component at 0. But, I don't even see what I would use in the problem to find the charge along the Y component. I really want to understand this. Any advisement would be appreciated.
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