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The position of a 0.30-kg object attached to a spring is described by x = (0.21 m) cos(0.6nt). (a) Find the amplitude of the motion.

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The position of a 0.30-kg object attached to a spring is described by x = (0.21 m) cos(0.6nt). (a) Find the amplitude of the motion. m (b) Find the spring constant. N/m (c) Find the position of the object at t = 0.27 s. m (d) Find the object's speed at t = 0.27 s. m/s

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