I found an example online and I think I substituted the right numbers in for this problem, is this how it would be solved? (I didn't understand the equation below and where it came from: KQ/x²-2.4KQ/(x+1.00)²)
Enet=Esub1 + Esub2 = KQ/x²-2.4KQ/(x+1.00)²
KQ/x²-2.4KQ/(x+1.00)²
The Ks and Qs...
Homework Statement
Two point charges of -2.5 µC and 6.0 µC lying along the x-axis are 1.0 m apart. Locate the point (other than infinity) at which the total electric field is zero.
Homework Equations
I was thinking: E=F/q
and
F=K (Q x q)/d^2
But I'm not quite sure how to use them...