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A 50.0 gram mass connected to a spring with a spring constant of 35 N m...

A 50.0 gram mass connected to a spring with a spring constant of 35 N m oscillates on a horizontal, frictionless surface with an amplitude of 4.00 cm. (i) What is the total mechanical energy of the system? (ii) What is the speed of the mass when the displacement is 1.00 cm? (iii) What is the potential energy when the displacement is 3.00 cm? (iv) What is the kinetic energy when the displacement is 3.00 cm?

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