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Exam 4 [Spring 2007]

Exam 4 [Spring 2007] - W 28 March 2007 1:00 p.m 1:50 p.m...

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W 28 March 2007 CODE # 1 1:00 p.m. – 1:50 p.m. PHYSICS 114 Fourth Hour Exam INSTRUCTIONS: Answer each question. All questions carry equal weight. You should calculate your answers to three (3) significant figures. Your answer may not agree exactly with one of the possible answers, but your answer, if correct, should agree with one of the possible answers to at least two (2) significant figures. Be sure to enter the code number, found in the upper right corner of this page, in the appropriate box in your scantron answer sheet. All information supplied by you on your scantron sheet must be left justified, that is it must be entered beginning at the left hand end of the entry box. 1. A slug of mass, m = 2.47 X 10 -2 kg, travels horizontally and hits a block of wood, in which it becomes embedded. This block was initially at rest and has a mass, M = 4.76 kg. The block is suspended by a cord of length, L = 0.572 m. The block is measured to rise through a maximum vertical distance, h = 0.112 m, above its initial position before momentarily coming to rest. The initial velocity of the slug was (a) 217 m/s (b) 362 m/s (c) 287 m/s (d) 329 m/s (e) 373 m/s 2. A slug of mass, m = 0.186 kg, travels horizontally with a speed, v = 487m/s, and passes through a
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