PLEASE HELP Car A (1000 kg) is initially moving east at 10 m/s when it crashes into Car B (1200 kg) initially moving at 6 m/s. Car A recoils with a velocity of 1.5 m/s after the collision. What is the velocity, including direction, of Car B?

Which statement correctly describes the relationship between frequency and wavelength?

If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 380j of energy to the room?

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.