Young's double slit experiment is one of the quintessential experiments in physics. the availability of low cost lasers in recent years allows us to perform the double slit experiment rather easily in class. your professor shines a green laser (564 nm) on a double slit with a separation of 0.108 mm. the diffraction pattern shines on the classroom wall 4.0 m away. calculate the fringe separation between the fourth order and central fringe.

Abasketball star covers 2.65 m horizontally in a jump to dunk the ball. his motion through space can be modeled precisely as that of a particle at his center of mass. his center of mass is at elevation 1.02 m when he leaves the floor. it reaches a maximum height of 1.90 m above the floor and is at elevation 0.910 m when he touches down again. (a) determine his time of flight (his "hang time"). (b) determine his horizontal velocity at the instant of takeoff. (c) determine his vertical velocity at the instant of takeoff. (d) determine his takeoff angle. (e) for comparison, determine the hang time of a whitetail deer making a jump with center-of-mass elevations yi = 1.20 m, ymax = 2.45 m, and yf = 0.750 m.