Exam+1+--+Fall+2002+--+Blank - 5 Your printedname Your...

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Your printed name Your Signature Physics 240 First Exam Some physical condtants: Coulomb's law constant Charge on electron Mass of electron Mass of proton Permittivity of free space Permeability of free space Speed of light in vacuum Location 316 Dennison 316 Dennison 325 Dennison 224Dennison 224Dennison 224Dennison 205 Dennison 205 Dennison 205 Dennison 316 Dennison 316 Dennison 316 Dennison 325 Dennison 316 Dennison 316 Dennison 316 Dennison 325 Dennison 325 Dennison k = g.ggg * 10e N-mzrc2 e = -L602 x 1g-te g m" = 9.109 * 10-31 kg mp= I.672 * 10-27 kg so = 8.854 x 1g-t2 C2A{-m2 W=4n * 10-'T-m/A c = 2.998 * 108 m/s Section Time 004 8:00 005 9:00 006 11:00 007 2:00 008 3:00 009 4:00 012 9:00 013 10:00 014 11:00 015 10:00 016 11:00 017 12:00 023 10:00 024 3:00 025 1:00 027 2:00 028 2:00 029 9:00 Instructor Winn Winn Winn Bretz Bretz Bretz Kurdak Kurdak Kurdak Zhou Zhou Zhol Tomozawa Winn Winn Winn Tomozawa Tomozawa October 31 2002 The exam is 75 minutes long. There ue 20 questions, check thatyou have all pages. You may use one 3" by 5" card of notes and a calculator. No other notes or books areallowed. Make sure you correct$ copyyour choices to the answer sheet. Make sure you put the exam version (1) on the answer sheet. Prefixes:Mmega=106,kkilo=103,mmilli=10-3,pmicro=10-6,nnano=10-e,ppico=lg-12 +5
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Physics 240 F all 2002 Exarn I 1. A smallobject has charge Q. Chuge 4 is removed from it and placed on a second small object. The two objects are placed 1 m apart. For the force that each object exerts on the other to be a maximum. q should be: Two small charged objects repel each other with a force F when separated by a distance d.If the charge on each object is reduced to one-fourth of its original value andthe distance between them is reduced to dl2 the force becomes: FIL6 Fl8 Ft4 Ft2 F Charges Q, -Q, and q are placed at the vertices of an equilateral triangle as shown. The total force exerted on the charge 4 is: {Ba / \ / \ -n#*-*\*n toward charge Q toward charge -Q awayfrom chnge Q at right angles to the line joining Q and-Q parallel to the line joining Q and -Q A) U3 B ) O c) Qtz D) Qt4 E ) 0 A) B) c) D) E) A) B) C) D) E) Page I
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+5 4.
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  • Spring '10
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  • Electric charge, Winn Winn Bretz Bretz Bretz Kurdak Kurdak Kurdak Zhou Zhou Zhol Tomozawa Winn Winn Winn Tomozawa Tomozawa, Winn Winn Winn, Winn Winn Bretz, Tomozawa Winn Winn

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