Homework for Chapter 8 Homework for Chapter 8 1. Suppose you jump straight up as high as you can. Estimate how much initial velocity you had. Potential energy increases, and kinetic energy decreases.
Potential energy decreases, and kinetic energy is constant.
Potential energy decreases, and kinetic energy is constant. Potential energy is constant, and kinetic energy increases. Potential energy is constant, and kinetic energy is constant. An oxygen molecule of mass M is sitting at rest minding its own business. Suddenly, a cosmic ray photon passes by and adds an energy D to the molecule.