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Suppose You Wanted to Hold Up an Electron Against the Gravitational

question 73

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Suppose you wanted to hold up an electron against the gravitational force by the attraction of a fixed proton some distance above it.How far above the electron would the proton have to be? (k = 1/4πε0 = 9.0 × 109 N ∙ m2/C2,e = 1.6 × 10-19 C,mproton = 1.67 × 10-27 kg,melectron = 9.11 × 10-31 kg)


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