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)

What happens to light waves from a star as the star moves away from earth?

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.

Ablock of mass 1.5 kg slides down an inclined plane that has an angle of 15. if the inclined plane has no friction and the block starts at a height of 3 m, how much kinetic energy does the block have when it reaches the bottom? acceleration due to gravity is g = 9.8 m/s2. a. 6.8 j b. 50.9 j c. 0 j d. 44.1 j