problem23_31

University Physics with Modern Physics with Mastering Physics (11th Edition)

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23.31: a) 2 2 1 1 qV K qV K + = + ; ) ( 1 2 2 1 K K V V q - = - C 10 602 . 1 19 - × - = q J; 10 099 . 4 18 2 1 e 2 1 1 - × = = v m K J 10 915 . 2 17 2 2 e 2 1 2 - × = = v m K V 156 1 2 2 1 - = - = - q K K V V The electron gains kinetic energy when it moves to higher potential. b) Now 0 J, 10 915 . 2 2 17
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Unformatted text preview: 1 = =-K K V 182 1 2 2 1 + =-=-q K K V V The electron loses kinetic energy when it moves to lower potential...
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