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** Foucault's pendulum in 1851, the French physicist. Jean Foucault hung a large iron ball on a wire about 67 m (220 ft) long to show that Earth rotates. The pendulum appears to continuously change the plane in which it swings as time elapses. Determine the swinging frequency of this pendulum. Explain why the behavior of Foucault's pendulum provides supporting evidence for the hypothesis that Earth is a noninertial reference frame and helps reject the mode of a geocentric universe (Earth at the center).
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