p45_002 - 2. We establish a ratio, using Eq. 22-4 and Eq....

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2. We establish a ratio, using Eq. 22-4 and Eq. 14-1: F gravity F electric = Gm 2 e /r 2 ke 2 /r 2 = 4 πε 0 Gm 2 e e 2 = (6 . 67 × 10 11 N · m 2 / C 2 )(9 . 11 × 10 31 kg) 2 (9 . 0 × 10 9 N · m 2 / C 2 )(1 . 60 × 10 19 C) 2 =2 . 4 × 10 43 . Since F
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