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Chapter 19 Electric Charges, Forces, and Fields
1. Set the coulomb force between the electron and proton equal to the centripetal force required for the electro’s circular orbit: 12 2 22 2 ecp e qq kma r ev km rr = = 2. Solve for the speed of the electron, v: e k ve mr = 3. Substitute numerical data: 922 19 31 11 6 8.99 10 . / (1 .6 0 1 0 ) (9.11 10 )(5.29 10 ) 2.19 10 / Nm C vC kg m ms ...
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