If a 260 N rock is lifted with a lever having an IMA of 4.0, how much force
must be exerted under ideal conditions? Over what distance would this
force have to be exerted if the rock is to be lifted 0.50 m?

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.

Select the three ways that the parallel-plate capacitor differs from a car battery.

Another word for electromagnetic energy is a. heat b. force c. matter d. radiation