A 2011kg car is moving at a velocity of 23.9m/s, east. Suddenly, it collides with a second car on an icy surface that has a mass of 1950kg and is moving at a velocity of 15.7m/s, east. During the collision, the two cars stick together and continue to move. What is the final velocity of the two cars? What type of a collision is this?

Sally turns on her cellular telephone to speak to her friend who is located thousands of miles away. which of the following best describes how such a telephone is able to transmit and receive information? a. the cellular telephone transmits, receives, and encodes information using only sound waves. b. the cellular telephone transmits, receives, and encodes information using only electromagnetic waves. c. the cellular telephone transmits information by electromagnetic waves to a receiver which then encodes them and produces sound. d. the cellular telephone transmits information by sound waves to a receiver which then encodes them and produces electromagnetic waves.