Asingle-wavelength beam of light is pointed at a dark shield with two narrow slits. as a result, an interference pattern forms in the space on the other side of the partition. the wavelength is 635 nm, and the first-order bright fringe lies at a 16.6° angle from the central maximum. what is the slit separation (in µm)?

The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.