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I keep seeing 7.620497955 as the electrical force between a proton and electron but when I multiply (8.99 x 10^9)(1.602 x 10^-19)-(1.602 x 10^-19)/(10^-10)2 I get a diffrent answer. Am I multiplying the wrong numbers?

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karla

  1. What do you mean you "see"the force as ...?

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    bobpursley

  2. By "see" I meant that I had checked my answer on the internet to see if I was correct in thinking that multipying the charge of an electron, charge of a proton, and k would yield the electrical force between an electron and proton. My answer was 23.10 x 10^-9 which seemed quite different than other answers I saw posted. Either my math was wrong or the numbers I have been using are wrong. I used -1.602 x 10^-19, 1.602 x 10^-19, and the k constant 9 x 10^9. Thanks!

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    Anonymous

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