bmidterm1_10 - Physics 9B-C Midterm 1 .;eachisworth20...

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Midterm 1 Page 1 of 2 UC Davis, Cole Physics 9B-C Midterm 1 October 22, 2010 Put your name on your blue book. Put your name on your blue book. There are five problems on two pages; each is worth 20 points. Work problems on your blue book. Please put each problem on a new page (use front and back). Except for problem #1, no credit will be given for answers without work. Answers must have correct units. Remember that the grader must be able to understand your solution to give you partial credit; therefore, explain your solutions clearly and intelligently. Incomprehensible work will receive no partial credit. Good Luck! [1] Record the answer that correctly completes the sentence in your blue book. a) A sound wave is a ( transverse | longitudinal ) wave. b) A sound wave in turpentine travels at 1200 m/s, and it hits a boundary with water where the speed of sound is 1500 m/s. The reflected waves will be shifted by a phase of ( 0 | π
 | 2 π
 | none of the above ) relative to the incident wave.
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