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At what speed should the electron revolv...

At what speed should the electron revolve around the nucleus of a hydrogen atom in order that it may not be pulled into the nucleus by electrostatic attraction ? Take the radius of orbit of an electron as `0.5Å` , the mass of the electron as `9.1xx10^(-31)` kg and charge as `1.6xx10^(-19)C`.

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Calculate the speed of the electron revolving around the nucleus of a hydrogen atom in order that it may not be pulled into the nuclues by electrostatic attraction.

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