Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is removed. The radius of the orbit is 2.26 × 10-11 m. Determine the magnitude of the electron's centripetal acceleration.
Electron mass= 9.11X 10^-31 kg
Electron charge= -1.60x10^-19 C
Proton charge= 1.60x10^-19 C
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