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A charge +Q is located at the origin and a second charge, +4Q, is at distance d on the x-axis. If a third charge, q, is placed somewhere, so that all three charges will be in equilibrium.1. What should be its sign, so that all three charges will be in equilibrium?A. Negative. B. Positive.2. What should be its magnitude, so that all three charges will be in equilibrium?
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A1200 kg car traveling north at 10 m/s is rear-ended by a 2000 kg truck traveling at 30 m/s. what is the total momentum before and after the collision?
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A charge +Q is located at the origin and a second charge, +4Q, is at distance d on the x-axis. If a...
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