A skydiver drops himself from a plane, he passes 100 m before opening a parachute. If he experiences free fall motion, how much is his final speed at that point?.

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.

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?

What type of force holds atoms together in a crystal?