EZ POINTS 9. Which best describes the movement of particles in milk? A. The particles only move when the milk is disturbed by an outside force B. The particles stay locked in place, but vibrate C. The particles are close together, but can flow past one another D. The particles bounce around at high speed

Which of the following statements is true? a. most heat energy is easily recovered and used for useful actions. b. friction causes molecules to vibrate more slowly. burning air and gasoline in an c. engine changes chemical energy into mechanical energy. it is impossible to d. change mechanical energy into mechanical energy.