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Physics, 30.11.2019 06:31 cocodemain

A0.20-kg block rests on a frictionless level surface and is attached to a horizontally aligned spring with a spring constant of 40 n/m. the block is initially displaced 4.0 cm from the equilibrium point and then released to set up a simple harmonic motion. what is the speed of the block when it passes through the equilibrium point?

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