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Unformatted text preview: Platt, David Homework 3 Due: Sep 12 2005, 4:00 am Inst: Ken Shih 1 This print-out should have 11 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. The due time is Central time. Note for numeric problems: 1,As far as a magnitude value is concerned, it always means the absolute value. Be careful of the sign of your answer. 2,Please check students instruction concerning the significant figure and precision etc in case you do the right way but get the wrong answer. 001 (part 1 of 1) 10 points A rod 9 . 7 cm long is uniformly charged and has a total charge of- 27 C. The Coulomb constant is 8 . 98755 10 9 N m 2 / C 2 . Determine the magnitude of the electric field along the axis of the rod at a point 18 . 2357 cm from the center of the rod. Answer in units of N / C. 002 (part 1 of 1) 10 points A circular arc has a uniform linear charge density of 9 nC / m....
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