Write the formula for a partially inelastic collision and explain what all 6 variables are and the unit each is measured in. State Newton’s 3 rd Law of Motion. State the Law of Conservation of Momentum and explain it in your own way.

From center station, a train departs every 30 minutes on the fast line and a train departs every 50 minutes on the state line. if two trains depart from center station at 8: 00 a.m., one on each of the two lines, what is the next time that two trains, one on each line, will depart at the same time?

Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle

What are similarities and differences between refraction, reflection, diffraction and absorption?