Electrostatic force between two objects

[chaslltt]

Homework Statement

Two small objects, A and B, are fixed in place and separated by 2.46 cm in a vacuum. Object A has a charge of +1.18C, and object B has a charge of -0.937C. How many electrons must be removed from A and put onto B to make the electrostatic force that acts on each object an attractive force whose magnitude is 32.3 N?

Homework Equations

I using Coulombs law and I am plugging Qa+Q for Qa and Qb-Q for Qb. I end up getting a quadratic but only getting imaginary results

The Attempt at a Solution

 

[Doc Al]

I using Coulombs law and I am plugging Qa+Q for Qa and Qb-Q for Qb. I end up getting a quadratic but only getting imaginary results

Show exactly what you did. (Careful with signs.)

 

[tiny-tim]

hi chaslltt!

show us your full calculations, and then we'll see what went wrong, and we'll know how to help!