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Unformatted text preview: e is set equal to its SI value 1 . 6 10 19 C. We note that k = 1 / 4 can be written as 8 . 99 10 9 V m / C. Thus, from energy conservation, we have K = U = r = kq 1 q 2 K = ( 8 . 99 10 9 V m C ) ( 3 1 . 6 10 19 C ) (90 e ) 3 . 00 10 6 eV which yields r = 1 . 3 10 13 m (or about 130 fm)....
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.
 Fall '08
 SPRUNGER
 Physics, Charge, Energy, Kinetic Energy

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