Question: Two tiny spheres have the same mass and carry charges of the same magnitude. The mass of each sphere is 2.0 10-6 kg. The

Two tiny spheres have the same mass and carry charges of the same magnitude. The mass of each sphere is 2.0 × 10-6 kg. The gravitational force that each sphere exerts on the other is balanced by the electric force.

(a) What algebraic signs can the charges have?

(b) Determine the charge magnitude.

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