problem23_48

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

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23.48: (a) 13 12 1 F F a m F + = = Σ + × × = + = = = = = + - 2 2 2 6 2 2 9 2 13 2 12 2 3 2 1 1 2 13 3 1 2 12 2 1 ) m 16 . 0 ( 1 m) 08 . 0 ( 1 ) C 10 0 . 2 ( ) C Nm 10 9 ( ) kg 02 . 0 ( 1 1 a r r kq ma q q q q a m r q kq r q kq 2 s m 352 = a (b) Maximum speed occurs at “infinity”. The center charge does not move since the forces on it balance. Energy conservation gives . f i K U = . 2 1 2 1 2 3 3 2 1 1 23 3 2 13 3 1 12 2 1 v m v m r q kq r q kq r q kq + = + + s m 5 . 7 m 08 . 0 1 m 16 . 0 1 m 08 . 0 1 kg 020 . 0 ) C 10 2 ( )
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This document was uploaded on 02/06/2008.

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