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My question is do I use the kinetic energy to get velocity of electron then proton separately, and afterwards divide the results to obtain the ratio?

- Thread starter lovelylm1980
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- #1

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My question is do I use the kinetic energy to get velocity of electron then proton separately, and afterwards divide the results to obtain the ratio?

- #2

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That's what I would do.

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proton: M, u

mv²/2 = Mu²/2

mv² = Mu²

v²/u² = M/m

v/u = sqrt(M/m) = sqrt(1836) = 42.85

(valid for v << c)

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