A driver loses control of his car and drives off the road into a ditch. The car lands 2.7 meters below the road and 24 meters horizontally from the edge of the road. How fast was the car traveling as it left the road?

A6,600 kg train car moving at +2.0 m/s bumps into and locks together with one of mass 5,400kg moving at -3.0m/s. what is their final velocity? +0.50 m/s -1.0 m/s +2.5 m/s -0.25 m/s

In a system, when potential energy decreases, then entropy also decreases. true false

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.