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Two simple pendulums of equal length l = 0.45 m are suspended from the same point.The pendulum bobs are small solid steel spheres.The first bob is drawn back to make a 35° angle with the vertical,while the other one is left hanging at rest.If the first bob has a mass of 0.25 kg and the second has a mass of
How high will the second bob rise above its initial position when struck elastically by the first bob after it is released?
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