Using the brake at the same time as you negotiate a curve is an example of A force of impact
B splitting traction
C centrifugal force
D center of gravity

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