problem23_74

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

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23.74: Maximum speed occurs at “infinity” Energy conservation gives 2 150 150 2 50 50 2 1 2 1 2 1 v m v m r q kq + = Momentum conservation: 150 50 150 150 50 50 3 and v v v m v m = = Solve for m 0.50 where , and 150 50 = r v v s m 24 . 4 , s m 7 . 12 150 50 = = v v Maximum acceleration occurs just after spheres are released.
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Unformatted text preview: gives ma F = 150 150 2 2 1 a m r q kq = 150 2 5 5 2 2 9 ) kg 15 . ( m) 50 . ( ) C 10 3 ( ) C 10 ( ) C Nm 10 9 ( a = --2 150 s m . 72 = a 2 150 50 s m 216 3 = = a a...
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