Which of the following has the most potential energy? a car speeding down a 20 foot hill. a person at the top of a 20 foot hill. a car at the top of a 20 foot hill.

The mini-refrigerator fire was most likely caused by what type of wiring?

Which bonds are found inside a water molecule

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.