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MIT 8.01 Physics I Classical Mechanics, Fall 1999 13 Online
OpenStudy (anonymous):

Um...Okay thermal expansion question here..... A torsional pendulum consists of a solid disc connected to a thin wire (coefficient of linear expansion-alpha is 2.4x10^-5 Celsius inverse)at its centre.Find the percentage change in the time period between peak winter (5 degrees celsius ) and peak summer (45 degrees celsius ). The answer is 9.6x10^-2 But will someone please explain how he/she would solve it.

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