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A total electric charge of 3.50 nC is distributed uniformly over the surface of a metal...

A total electric charge of 3.50 nC is distributed uniformly over the surface of a metal sphere with a radius of 26.0 cm . The potential is zero at a point at infinity.

1) Find the value of the potential at 60.0 cm from the center of the sphere.

2) Find the value of the potential at 26.0 cm from the center of the sphere.

3) Find the value of the potential at 10.0 cm from the center of the sphere.

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