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P7a-Simple Pendulum Calculate the periodic time (T) for a frictionless pendulum made from a length of steel rod 4.8m long at 20C holding a

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P7a-Simple Pendulum Calculate the periodic time (T) for a frictionless pendulum made from a length of steel rod 4.8m long at 20C holding a mass of 2kg. Calculate the percentage difference in the periodic time if the rod is heated to 80C. Assume the coefficient of linear expansion for the rod is 12 x10-6/C.

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