An electromagnetic plane wave has an electric field that is parallel to the y axis, and has a Poynting vector given by (x, t) = (110 W/m^2) cos2(kx - ωt)î where x is in meters, k = 14.0 rad/m, ω = 4.20 x10^9 rad/s, and t is in seconds.

a. What is the direction of propagation of the wave?
b. Find the wavelength and the frequency of the wave.
c. Find the electric and magnetic fields of the wave as functions of x and t.

An air-standard stirling cycle operates with a maximum pressure of 600 psia and a minimum pressure of 10 psia. the maximum volume of the air is 10 times the minimum volume. the temperature during the heat rejection process is 100°f. calculate the specific heat added to and rejected by this cycle, as well as the net specific work produced by the cycle. use constant specific heats at room temperature. the properties of air at room temperature are r

Three charge are arranged as shown in the diagram. the magnitude of the net electrical force acting on the +6 uc charge, rounded to the tenths place, is .

Select the three ways that the parallel-plate capacitor differs from a car battery.