Suppose that a parallel-plate capacitor has circular plates with radius r = 25 mm and a plate separation of 4.7 mm. suppose also that a sinusoidal potential difference with a maximum value of 160 v and a frequency of 60 hz is applied across the plates: that is, v = (160 v) sin[2π(60 hz)t].(a) findbmax(r), the maximum value of the induced magnetic field that occurs at r = r. (b) plotbmax(r) for 0 < r < 10 cm.

The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?

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

Question 1(multiple choice worth 2 points) in order to be considered work, the components that must be present are • a force and a movement in the same direction as the force an action which causes movement and an opposite reaction an action which causes no movement or reaction a force and a movement in the opposite direction of the force