consider two carts, of masses m and 2m, at rest on a frictionless track. if you push each cart with the same amount of force for equal amounts of time, which will have the greater kinetic energy?

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.

The speed of light can be used to measure the