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A machine part is vibrating along the x-axis in simple harmonic motion
with a period of 0.27 s and a range (from the maximum in one direction to
the maximum in the other) of 3.0 cm. At time t = 0 it is at its central
position and moving in the +x direction. What is its position when t = 55
s?
O +0.51 cm
O -0.43 cm
O -1.4 cm
O 0.51 cm

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