phy2049e1sm08 - 77777 77777 Instructor P Kumar PHYSICS...

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77777 77777 Instructor: P. Kumar PHYSICS DEPARTMENT PHY 2049 Exam I May 30, 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. DIRECTIONS (1) Code your test number on your green answer sheet (use 76–80 for the 5-digit number) . Code your name on your answer sheet. Darken circles completely (errors can occur if too light) . Code your student number on your answer sheet. (2) Blacken the circle of your intended answer completely, using a number 2 pencil . Do not make any stray marks or the answer sheet may not read properly. (3) The answers are rounded off. Choose the closest to exact. There is no penalty for guessing. >>>>>>>> WHEN YOU FINISH <<<<<<<< Hand in the green answer sheet separately. 1. Two identical conducting spheres A and B carry equal charge. They are separated by a distance much larger than their diameters. A third identical conducting sphere C is uncharged. Sphere C is first touched to A, then to B, and then removed. Finally, spheres A and B are brought into contact and then separated. As a result, the electrostatic force between A and B, which was originally F, becomes: (1) 25F/64 (2) F/2 (3) F/4 (4) 5F/8
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This note was uploaded on 07/31/2011 for the course PHY 2049 taught by Professor Any during the Summer '08 term at University of Florida.

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phy2049e1sm08 - 77777 77777 Instructor P Kumar PHYSICS...

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