Two cars collide at an icy intersection and stick together afterward. the first car has a mass of 1200 kg and is approaching at 8.00m/s due south. the second car has a mass of 850 kg and is approaching at 17.0m/s due west. (a) calculate the final velocity (magnitude and direction) of the cars. (b) how much kinetic energy is lost in the collision

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.