problem22_50

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

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22.50: a) If the nucleus is a uniform positively charged sphere, it is only at its very center where forces on a charge would balance or cancel b) 3 0 3 3 0 2 0 4 4 R πε er E R r ε e πr E ε q d = = = = Φ A E . 4 1 3 2 0 R r e πε qE F - = = So from the simple harmonic motion equation: . 4 1 2 1 4 1 4 1 3 2 0 3 2 0 3 2 0 2 mR e πε π f mR e πε ω R r e πε r F = = - = - = c) If 3 2 0 14 4 1 2 1 Hz 10 57 . 4 mR e πε f π = × = m. 10 13 . 3 Hz) 10 57 . 4 )( kg
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Unformatted text preview: 10 11 . 9 ( 4 C) 10 60 . 1 ( 4 1 10 3 2 14 31 2 2 19---× = × × × = ⇒ π πε R 1 Thompson actual ≈ r r d) If R r then the electron would still oscillate but not undergo simple harmonic motion, because for , 1 , 2 r F R r ∝ and is not linear....
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This document was uploaded on 02/06/2008.

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