If the electric field radiated by the ions in a laser gain medium is written as e(t) ege (el@ot +e iwpt where wo is the centre of the lineshape function and y is associated with the relaxation rate, show that the normalised lineshape as a function of frequency v is given by: i(v) i(vo)

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line

Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.

You are driving to the grocery store at 20 m/s. you are 110m from an intersection when the traffic light turns red. assume that your reaction time is 0.50s and that your car brakes with constant acceleration. how far are you from the intersection when you begin to apply the brakes? what acceleration will bring you to rest right at the intersection? how long does it take you to stop after the light changes? the known values: vi=20m/s xi=110m t=.50s vf=0m/s xf=0m a=?