FinalExamPart2 - UC Berkeley Physics 7A Summer 2016 Reinsch Final Exam Part 2 This exam is closed book and closed notes You are allowed two sheets of

# FinalExamPart2 - UC Berkeley Physics 7A Summer 2016 Reinsch...

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UC Berkeley, Physics 7A, Summer 2016, Reinsch Final Exam Part 2 This exam is closed book and closed notes. You are allowed two sheets of 8.5” x 11” paper containing hand-written notes, front and back. Calculators are not allowed. Please make sure that you do the following: - Write your name, discussion number, and ID number on your bluebook/greenbook. - Make sure that the grader knows what should be graded by circling your final answer. - You must explain how you arrived at your answers .
Problem 1 A physical pendulum is made from two thin uniform disks of radius R (think of thin coins) and a massless rod. Each of the disks has mass M , so the total mass is 2 M . The distance from the center of the upper disk to the pivot point is L 1 (which is greater than R ). The distance from the center of the lower disk to the pivot point is L 2 (which is greater than L 1 ). The diagram at right shows the pendulum and a vertical reference line.

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