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FinalExamSolution (2)

FinalExamSolution (2) - PHYSICS 9B FINAL EXAM December 9...

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PHYSICS 9B FINAL EXAM December 9, 2008 I certify by my signature below that I will abide by the UC Davis Code of Academic Conduct. This includes not copying from anyone else’s exam not letting any other student copy from my exam not discussing this exam with any student who has not yet taken it, nor providing any information, written or oral, that might get to a student who has not yet taken it. Anyone suspected of cheating will be automatically reported to Student Judicial Affairs. LAST NAME: FIRST NAME: STUDENT ID: (P R I N T) (P R I N T) (LAST 4 DIGITS) Signature: Problem 1. (2 points) Solution The left end of the long spring (point P) is displaced towards the right and kept there. The displacement ˙ x of point P is therefore nonzero (positive). At the instant shown, the wave pulse has not yet reached the right end of the long spring (point S), so this end has not yet been displaced. The only possible choice is D. A B C D
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