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Question: Two tiny spheres have the same mass and carry charges of the same magnitude. The mass of each sphere is 6.44 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? the same algebraic sign, both positive or both negative the same algebraic sign, both negative opposite algebraic sign, one positive and one negative the same algebraic sign, both positive
(b) Determine the charge magnitude.
A small, 300 cart is moving at 1.90 on an air track when it collides with a larger, 1.00 cart at rest. After the collision, the small cart recoils at 0.890. Evaluate the speed of the large cart after the collision?
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