1. There are 82 protons in a lead nucleus. Why doesn't the lead nucleus burst apart? a) Coulomb repulsive force doesn't act inside the nucleus b) gravity overpowers the Coulomb repulsive force inside the nucleus c) the negatively charged neutrons balance the positively charged protons d) protons lose their positive charge inside the nucleus d) None of the other responses are correct

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A: given-         mass of particle ( m )= 100 gm = 0.1 kg

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A: Speed= V = 62 mile/ hour = 27.7 m/s Angle = 45

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A: Given:      Mass of particle(m) = 1.6×10-27 kg     Momentum of particle(p) = 2.2×10-18 kg.m/s

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Q: the solution is not correct

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Q: How fast must a 2.7-g ping-pong ball move in order to have the same kinetic energy as a 145 g…

A: Given that,  Mass of ping-pong ball, mp=2.7 g=2.7×10-3 kg Mass of baseball, mb=145 g=145×10-3 kg…

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A: