Name: Date:
12. Maria hiked up Kennesaw mountain heading east. She hiked for a total of 2 hours, and
covered a total distance of 6 miles. What was her average velocity?

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