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A simple harmonic oscillator consists of a block of mass 3.50 kg attached to a spring of spring constant 210 N/m. When t = 2.30 s, the position and velocity of the block are x = 0.140 m and v = 2.810 m/s.

(a) What is the amplitude of the oscillations? What were the (b) position and (c) velocity of the block at t = 0 s?

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