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A thread pendulum is long. The pendulum oscillates so that it hits a pin on one side, which is away from the point where the thread is attached (see figure). What is the oscillation frequency of this pendulum?
Thread pendulum
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long. The pendulum oscillates so that it hits a pin on one side, which is 
away from the point where the thread is attached (see figure). What is the oscillation frequency of this pendulum?
