016 (part 1 of 2) 10.0 points
a neutron in a reactor makes an elastic head-
on collision with the nucleus of an atom ini-
tially at rest.
assume: the mass of the atomic nucleus is
about 11.8 the mass of the neutron.
what fraction of the neutron's kinetic en-
ergy is transferred to the atomic nucleus?
017 (part 2 of 2) 10.0 points
if the initial kinetic energy of the neutron is
2.72 x 10-1 j, find its final kinetic energy.
answer in units of j.

An electron is trapped at a defect in a crystal. the defect may be modeled as a one-dimensional, rigid-walled box of width 1.00 nm. (a) sketch the wavefunctions and probability densities for the n 1 and n 2 states. (b) for the n 1 state, nd the probability of nding the electron between x1 0.15 nm and x2 0.35 nm, where x 0 is the left side of the box. (c) repeat (b) for the n 2 state. (d) calculate the energies in electron volts of the n 1 and n 2 states