A1000 kg car crashed into bearer . the car changed speed from 30 m/s to 20 m/s in 2 seconds . what force did the bearer apply to stop the car?

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

Anybody wanna ? (picture included? )

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.