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Quiz 1 key

Quiz 1 key - P hysics 2 14 Q uiz 1 4:30 P M F ED 5 2010 T...

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Part I: All questions to be answered on your Scantron card (42 points total). The first four problems refer to the diagram below. Three charges are on a line with electrons (e, charge -e) at either end and an alpha-particle (a, charge +2e) in the middle. Both electrons are the same distance D from the alpha-particle, and the magnitude of the force between the two electrons is F. e a. e ~ ~ ~ D D l. (3 points) What is the magnitude of the force between the alpha-particle and either of the electrons? \ , \C2e)1)C-~) k-/ _ "2.~e2lD z I FK:e = (a) O. L. (b) 3F. )h 1 z: Ih~~)~) 'Ke l / 4. D 'Z. ee L'lJ)~ ~ (c) 7F. @)8F. \ ~e \ / l i7 u \ := ?' 2. (3 points) What is the magnitude of the total force acting on the left electron? '2e 2 k eZK "2 ( ~Z-J (a) O. r~L =- ,p. . - c2d1 2 z: 7 LfDl @J3F. (c) 7F. 1-r: (d) 8F. 3. (3 points) What is the magnitude of the total force acting on the alpha particle? @O.
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Quiz 1 key - P hysics 2 14 Q uiz 1 4:30 P M F ED 5 2010 T...

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