A light beam (coming from air) with wavelength 537 nm is reflected constructively from a thin layer of oil having index of refraction 1.21. The oil floats on the top of water of index of refraction 1.33. What is the minimum thickness of the layer of oil in nanometers (nm)?

An ascending elevator, hanging from a cable, is coming to a stop. part a part complete identify all forces acting on the elevator from the list below. select all that apply. select all that apply. kinetic friction normal force tension weight static friction submitprevious answers correct part b draw a free-body diagram of the object. draw the vectors starting at the black dot. the location and orientation of the vectors will be graded. the exact length of your vectors will not be graded but the relative length of one to the other will be graded.