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

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Physics 214, Quiz 1 4:30 PM, FED. 5, 2010 1/ V T. Bolton Name -------"16- e- + Instructions. Print and sign your name on this quiz and on your scantron card. In doing so, you are acknowledging the KSU Honor Code: "On my honor as a student I have neither given nor received unauthorized aid on this assignment." For two quick points, circle your studio instructor: Lohman(TU 7:30) Bolton(TU 9:30) Van Domelen(TU 11:30) Murphy(TU 1:30) Lohman(TU 3:30) Farooq(WF 9:30) Van Domelen(WF 11:30) Work alone and answer all questions. Part I questions must be answered on the Scantron cards. Put your name on your card. Color in the correct box completely for every answer with a pencil. If you make a mistake, erase thoroughly. Don't forget to color in the boxes for your WID. If we have to correct this by hand we may take off five points from your score! Part II must be answered in the space provided on the test. The last page is a detachable equation sheet. You may use a calculator. You may ask the proctors questions of clarification. Show your work in a clear and organized manner. You may receive partial credit for partial solutions. Solutions lacking supporting calculations will receive no points. Good luck!
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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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This note was uploaded on 05/11/2010 for the course PHY 214 taught by Professor Timothybolton during the Spring '10 term at Kansas State University.

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

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