3. Waves in a lake are 6.0 m apart and pass a person on a raft every 2.0 s. What is the speed of the waves?

Acar travels along a highway with a velocity of 24 m/s, west. the car exits the highway; and 4.0 s later, its instantaneous velocity is 16 m/s, 45° north of west. what is the magnitude of the average acceleration of the car during the four-second interval?

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?