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1) If a mass mm and a mass 2 oscillate on identical springs with identical amplitudes, they both have the same maximum kinetic energy

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1) If a mass mm

and a mass 2 oscillate on identical springs with identical amplitudes, they both have the same maximum kinetic energy. How can this be? Shouldn't the larger mass have more kinetic energy? Explain.

2) When a 0.213-kg mass is attached to a vertical spring, the spring stretches a distance d

. If the mass is displaced from equilibrium, it makes 102 oscillations in 56.7 s. Find the A) spring constant and B) the stretch distance, d. Complete A and B.