Who is one woman who has contributed greatly to science? How?

How have the competing explanations' experiments on atoms affected the development of the atomic model?

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

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