qz12sol_3885f10 - TA: Tomoyuki Nakayama Monday, December 6,...

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TA: Tomoyuki Nakayama Monday, December 6, 2010 PHY 2048: Physic 1, Discussion Section 3885 Quiz 12 (Homework Set #14) Name: UFID: Formula sheets are not allowed. Calculators are allowed. Do not store equations in your calculator. You need to show all of your work for full credit. ________________________________________________________________________________ In the arrangement of the figure below right, a string, tied to a sinusoidal oscillator at P and running over a support at Q , is stretched by a block of mass m . The separation L between P and Q is 1.50 m, and the frequency f of the oscillator is fixed at 250 Hz. The amplitude of the motion at P is small enough for that point to be considered a node. A node also exists at Q . A standing wave appears when the mass of the hanging block is 300 g or 432 g, but not for any intermediate mass. a) What is the harmonic number of the standing wave pattern that appears when
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