A) A tuning for oscilates with a frequency of 256 hertz after being struck by a rubber hammer. Which phrase best describes the produced by fork
A) electromagnetic waves that require a medium for transmission
B) mechanical waves that require no medium for transmission
electromagnetic waves that require no medium for transmission
D) mechanical waves that require a medium for transmission

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