- #1
jonno426
- 3
- 0
Homework Statement
In an experiment you find that a small styrofoam ball of mass m can be suspended in mid-air by an electric field of magnitude c pointing straight downward, towards the earth.
Its looking for the charge on the styrofoam ball, and I have no equation to help me solve for it.
Homework Equations
Lol that's what I'm lookin for.