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Xet
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Homework Statement
q1 (-6.5E-7 C) @ 6 cm to the right of origin (X,Y coordinate is 6,0)
q2 (6.5E-7 C) @ 21 cm to the left of origin (X,Y coordinate is -21,0)
At the half-way point of these two charges, what is the E field value...?
Homework Equations
sum of electric fields
electric field at point is equal to constant times the charge, all divided by radius squared
constant is 8.99E9 Nmm/(CC)
The Attempt at a Solution
I found the two E's from the point to the half-way mark...I'm suppose to add the two E's because it's going from negative to positive...right? Well...I got it wrong...