A particle with charge 3 μC is located on the x-axis at the point -10 cm, and a second particle with the charge 4 μC is placed on the x-axis at -4 cm.
What is the magnitude of the total electrostatic force on the third particle with the charge 7 μC placed on the x-axis at -2 cm? The Coulomb constant is 8.9875e9.
The Attempt at a Solution
I realize how simple this problem is but the stupid online software keeps telling me I'm wrong (which I very well might be). I converted μC to C and cm to m. I keep getting 652, so with sig figs, 700 N.
What am I doing wrong? Thanks!