Suppose the disk in the example has a hole cut out of it from its center, forming an annulus. The inner radius is r = 6.0 cm, and the outer radius is R = 15.0 cm. What is the potential (in V) of the disk at point P a distance of x = 23.0 cm from the center of the disk along the x-axis? The uniform surface charge density of the disk is 30 nC/m2.

Which of the following are not typically included in the periodic table? a. atomic mass b. element symbol c. isotopes d. number of electrons

How many atoms of nitrogen are in the chemical formula ni(w on

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