A thin metal disk of mass m=2. 00×10−3kgm=2. 00×10−3kg and radius r=2. 20cmr=2. 20cm is attached at its center to a long fiber. (figure 1)when the disk is turned from the relaxed state through a small angle θθtheta, the torque exerted by the fiber on the disk is proportional to θθtheta: τ=−kθτ=−kθ. The constant of proportionality kkk is called the "torsional constant" and is a property of the fiber.
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A thin metal disk of mass m=2. 00×10−3kgm=2. 00×10−3kg and radius r=2. 20cmr=2. 20cm is attached at...
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