Physics 112 Refraction Intro.  Check out the online simulations listed below and on the weblinks page. Refraction Simulation A Refraction Simulations B Refraction Simulation C Physics 122 2nd type of Force: Hanging Signs Motion and Force Project (motion_and_force_project.pdf) - Due Monday. Comp Sci 110 Work through unit 8 questions and assignment.  Start Unit 9 notes.