[Answered] A Foucault pendulum consists of a brass sphere with a diameter of 35.0 cm suspended from a steel cable 10.5

A Foucault pendulum consists of a brass sphere with a diameter of 35.0 cm suspended from a steel cable 10.5 m long (both measurements made at 20oC). The swinging sphere clears the floor by a distance of only 2 mm when the temperature is 20oC. At what temperature will the sphere begin to brush the floor

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