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3. Consider the wave function ψ(x)- 슬 읔 ets, where σ s a real valued constant (a) Calculate the expectation value of K). K (b) Estimate the uncertainty Δ.r and Ap using Δ.1-V (.12)-(A)2. 4. Consider the eigenfunctions of the moment uni operator y p r her (a) Show that p,(r) is an eigenfunction of p with an cigenvalue p. (b) Find the coeflicients. w, in the espansion of (r)( upypp ) using the momentum eigenfunctions.

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1.3.5ー(2n-) 2 a 2

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