2048_Spring10_Exam1 - 77777 77777 Instructor(s):...

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Unformatted text preview: 77777 77777 Instructor(s): Matcheva/Sabin PHYSICS DEPARTMENT PHY 2048 Exam 1 February 1, 2010 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 7680 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) Hand in the answer sheet separately. Where needed use g = 9 . 80 m/s 2 1. A solid sphere has a uniform mass density of 4.1 kg/m 3 . If the total mass of the sphere is 137.3 kg, the radius of the sphere is about: (1) 2.0 m (2) 1.0 m (3) 3.0 m (4) 0.5 m (5) 4.0 m 2. A particle moves along the x axis from x i to x f . Of the following values of the initial and final coordinates, which results in the displacement with the largest magnitude? (1) x i =- 8 m, x f = 8 m (2) x i = 8 m, x f = 12 m (3) x i =- 8 m, x f =- 16 m (4) x i =- 8 m, x f = 4 m (5) x i = 8 m, x f =- 4 m 3. A car traveling at a constant speed starts at point A, goes 50 km in a straight line to point B, immediately turns around, and returns to point A (in a straight line). The time for this round trip is 2 hours. The magnitude of the average velocityand returns to point A (in a straight line)....
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2048_Spring10_Exam1 - 77777 77777 Instructor(s):...

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