PHY053 F06 Exam 3A

PHY053 F06 Exam 3A - Physics53 Fall 06 Exam 3 A Name:

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Unformatted text preview: Physics53 Fall 06 Exam 3 A Name: ____________________________ Section: ____ I certify that I have abided by the rules and the spirit of the Duke Community Standard. *** PLEASE READ CAREFULLY BEFORE YOU START *** Do not forget to write your name and section number above. You must do all multiple choice questions and two of the longer problems. If you attempt to do more than two of the longer problems, please, indicate below which two problems you want be counted. Remember that credit will only be given for solutions that show your work. Do not just write down your result, but show how you got it. No work shown = no credit. If numbers are required, use g = 10 m/s 2 . Record your MC answers (by letter A - E) here. No credit will be given, if you do not record your answer here ! MC1____ MC2____ MC3____ MC4____ MC5____ Check here, which two of the long problems should be counted: P1 ____ P2 ____ P3 ____ P4 ____ [To be filled in by grader:] Grading scores: MC ____ P1 ____ P2 ____ P3 ____ P4 ____ Total: ______ Multiple Choice Problems: 6 Points Each 1. The staff of an excursion boat in distress on a small lake lowers the lifeboat together with several frightened passengers into the water. They succeed without dropping a passenger or letting any water into the lifeboat. Does the water level of the lake change in the process? A) No, the water level remains unchanged. B) Yes, the water level rises. C) Yes, the water level falls. 2. Consider two identical oscillators x 1 ( t ) and x 2 ( t ). The maximum displacement of the first oscillator, A 1, is twice as large as that of the second oscillator, A 2 . The first oscillator is released at rest from its position of maximum displacement, the second oscillator is released at the same moment with positive velocity from the position...
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This note was uploaded on 05/13/2010 for the course PHYSICS 53L taught by Professor Mueller during the Fall '07 term at Duke.

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PHY053 F06 Exam 3A - Physics53 Fall 06 Exam 3 A Name:

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