phy2048e1s08real final

phy2048e1s08real final - 77777 Instructor(s...

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77777 77777 Instructor(s): Field/Hirschfeld PHYSICS DEPARTMENT PHY 2048 Exam 1 Feb. 4, 2008 Name (print, last first): Signature: On my honor, I have neither given nor received unauthorized aid on this examination. YOUR TEST NUMBER IS THE 5-DIGIT NUMBER AT THE TOP OF EACH PAGE. (1) Code your test number on your answer sheet (use lines 76–80 on the answer sheet for the 5-digit number) . Code your name on your answer sheet. DARKEN CIRCLES COMPLETELY . Code your UFID number on your answer sheet. (2) Print your name on this sheet and sign it also. (3) Do all scratch work anywhere on this exam that you like. Circle your answers on the test form. At the end of the test, this exam printout is to be turned in. No credit will be given without both answer sheet and printout. (4) Blacken the circle of your intended answer completely, using a #2 pencil or blue or black ink . Do not make any stray marks or some answers may be counted as incorrect. (5) The answers are rounded off. Choose the closest to exact. There is no penalty for guessing. If you believe that no listed answer is correct, leave the form blank . (6) Hand in the answer sheet separately. Where needed use g = 9 . 80 m/s 2
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77777 77777 1. A sphere has a radius of 21 cm and a mass of 1.9 kg. Its mass density is about: (1) 49 kg/m 3 (2) 2 . 0 × 10 - 6 kg/m 3 (3) 2 . 0 × 10 - 2 kg/m 3 (4) 1.4 kg/m 3 (5) 14 kg/m 3 2. During a short interval of time the speed v in m/s of an automobile is given by v = at 2 + bt 3 , where the time
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phy2048e1s08real final - 77777 Instructor(s...

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