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Problem: 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 occurring electrons is removed. The radius of the orbit is2.04 × 10^-11 m.

Part A: Determine the magnitude of the electron's centripetal acceleration.

I need help to solve the above problem and provide some pertinent background for this problem.

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