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3) The center of gravity of a simple pendulum of mass m and length L is located at the
pendulum bob, a distance L from the pivot point. The center of gravity of a uniform rod of
the same mass m and length 2L pivoted at one end is also a distance L from the pivot
point. Compared to the period of the simple pendulum, is the period of this uniform rod a)
longer; b) shorter; or c) the same and why?

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