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Electron Relative to the Point Charge Based on Electric Force

A point charge q = -3.5 x 10-10 C is fixed at the origin, as shown below. Where must an electron be placed relative to the point charge so that the electric force acting on the electron is exactly opposite to its own weight? Include a sketch showing the position of the charges (it does not need to be to scale, but it must show correct position). Draw and label the force vectors on both charges. Assume that the horizontal axes are parallel to the earth surface.

Please see the attached document for a diagram.

The distance between q and electron = _________.


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This solution calculates the distance between a point charge and an electron.