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MPA 7

# MPA 7 - MasteringPhysics Assignment Print View...

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Assignment 7 - Week8 Due: 11:48pm on Friday, November 4, 2011 Note: To understand how points are awarded, read your instructor's Grading Policy . [ Switch to Standard Assignment View] Problem 15.26 A transverse wave on a cord is given by , where and are in and is in . Part A At , what is the displacement of the point on the cord where ? Express your answer using two significant figures. ANSWER: = -0.19 Correct Part B At , what is the velocity of the point on the cord where ? Express your answer using two significant figures. ANSWER: = -4.1 Correct Problem 15.84 A wave with a frequency of 250 and a wavelength of 26.8 is traveling along a cord. The maximum speed of particles on the cord is the same as the wave speed. Part A What is the amplitude of the wave? ANSWER: = 4.27 Correct Problem 15.52 MasteringPhysics: Assignment Print View http://session.masteringphysics.com/myct/assignmentPrintVi... 1 of 6 11/24/11 11:32 AM

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One end of a horizontal string of linear density 5.3 × 10 4 is attached to a small-amplitude mechanical 200- oscillator. The string passes over a pulley, a distance away, and weights are hung from this end, the figure .
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