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Q. The E string on a violin has a fundamental frequency of 659 Hz. The length of the vibrating portion is 32 cm and has a mass of 0.35 g. Under what tension must the string be placed?

Q. Consider the apparatus as used in this lab: A cube of mass M = 500 g and side length 30 mm is free to spin on an axis through the center of one face. A massless pulley on this axis has a diameter of 2r = 10 mm. An object with m = 50 g is hung from a string wrapped around the pulley. The assembly is released from rest. Ignore friction.

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