The wave function of a particle of mass m, performing one-dimensional motion in a field with a certain potential V(x), has the form y(x) = Axx(-x/a) for x > 0 and is equal to 0 for x 0. Find V(x) and the total energy of the particle E, if it is known that V -> 0 as x -> . Find the average value of the kinetic energy of the particle.

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