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In the classical model of the hydrogen atom, the electron orbits the nucleus (proton) at a distance of 5.5 × 10-11 m. Given that the electron's mass, 9.1 × 10-31 kg, is negligible relative to that of the proton, what is the linear frequency (in Hz) of the orbital revolution of the electron around the proton?
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A mathematical phrase that can include numbers, variables, and operation symbols, but does not contain an equal sign.
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