Use the Coulomb formula and solve for Q.
0.300 N = k Q^2/R^2
What are the units of the 75.0? cm? meters? When you use the formula, R (the separation distance) should be in meters. You may need to look up the constant k, if you don't know it already.
What is the magnitude of the charge on two identical spheres that exert a force of 0.300 N when 75.0 apart?
1 answer