In the bohr model of the hydrogen atom an electron mass
In the bohr model of the hydrogen atom an electron (mass 9.1*10^-31kg) orbits a proton at a distance of 5.3*10^-11 m. The protonpulls on the electron with an electrical force of 8.2*10^-8 N. How many revolutions per second does the electron make?
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a 700 kg box is pulled by a 500n force at an angle of 30degrees to the horizontal the friction is 300 na write the
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in the bohr model of the hydrogen atom an electron mass 9110-31kg orbits a proton at a distance of 5310-11 m the
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