The gravitational force of attraction between two masses m and M at a distance apart of R is:
F = GmM/R^2.
Where G is the universal gravitational constant. Suppose that m is the mass of a rocket which decreases as it burns up its fuel, and that M is constant.
(a) Calculate and ponder the meaning of:
F_m =
F_R =

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