Move the slider such that the stick figure gives the crate a quick push so that it starts moving. Then let go; that is, remove the applied force. Why does the crate travel some distance before coming to a stop?

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th