physics
posted by Mandaleigh .
A point charge of +4.6 microcoulombs lies at x = 0 and a point charge of 7.3 microcoulombs lies at x = +3.3 m. Where on the x axis, is the total electric potential equal to zero? Answer in meters.

a spherical gaussian surface of rdius R surrounds a point charge of magnitude +Q. How does the flux through the spherical surface change if the sign of the charge is reversed and the Gaussian sphere is doubled?
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