Suppose an electron is confined to a space 0.1 nm long. The uncertainty in momentum of the electron is 1.1 x10-24 kg m/s or 2000eV/c. Let us take thisuncertainty in momentum to represent some kind of averagemomentum of such a confined electron. Then the "average"kinetic energy of the electron could be roughly expressed as:
(Δp)2 /2m. Find this "average" kineticenergy, expressed in eV.


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