Hot drinks are often served in plastic (styrofoam) cups. Why are these easier to hold than a paper cup?

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

In a series circuit the __ is the same at every point

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