A steel band exerts a horizontal force of 76n on a tooth at, Ask an Expert

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Q. A steel band exerts a horizontal force of 76N on a tooth at point B. What is the torque on the root of the tooth about point A?

Q. A 20m long string has a mass of 0.010kg. A 2.0 m segment of the string is fixed at both ends and while a tension of 20 N is applied to the string, three loops are produced. What is the frequency of the wave?

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