1. An Olympic dive platform is 10m above the water. A 60 kg diver steps off the platform to begin her dive. What is her KE
when she enters the water? How much work must the water
do on the diver to stop her momentum? If she stops 1.5 m
below the surface, how much force did the water apply to
the diver?

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