PHYSICS 240 Midterm: PHYS 240 University of Michigan Winter 2006 f05 Exam 1 1 sol
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Instructions: fill in your name above, this will be a 1. 5 hour, closed book exam. The exam includes 20 questions: you may use a calculator, please do not share calculators, you may use one 3 x5 note card with notes and equations you think may be useful. You can write on both sides of the card if you like: you will be asked to show your university student id card when you turn in your exam. 0 = 8. 85x10-12 c2/nm2 k = 1/(4 0) = 8. 99x109 qelectron = -1. 6x10-19 c qproton = 1. 6x10-19 c melectron = 9. 1x10-31 kg mproton = 1. 67x10-27 kg. 1: imagine four identical metal spheres; a, b, c, and d. sphere a has an initial charge of +12q, sphere b of -14q, and sphere c of +16q. The initially neutral sphere d is touched to sphere a, then they are pulled apart. Sphere d is then touched to sphere b, and they are pulled apart.
