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An undamped 1.21 kg horizontal spring oscillator has a spring constant of 34.5 N/m. While oscillating,...

An undamped 1.21 kg horizontal spring oscillator has a spring constant of 34.5 N/m. While oscillating, it is found to have a speed of 2.43 m/s as it passes through its equilibrium position. What is its amplitude of oscillation? What is the oscillator\'s total mechanical energy as it passes through a position that is 0.675 of the amplitude away from the equilibrium position?

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