P22_037 - 37. The net charge carried by John whose mass is...

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37. The net charge carried by John whose mass is m is roughly q =( 0 . 0001) mN A Ze M 0 . 0001) (90 kg)(6 . 02 × 10 23 molecules / mol)(18 electron proton pairs / molecule) ( 1 . 6 × 10 19 C ) 0 . 018 kg / mol =8 . 7 × 10 5 C , and the net charge carried by Mary is half of that. So the electrostatic force between them is estimated
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