Three particles having charges of +q, +Q, and - Q are placed at the corners of an equilateral triangle of side a, as shown below. The net force on the particle with charge
+q due to the other two charges is in the plane of the page and directed
(A)vertically upward
(B) vertically downward
(C) horizontally to the right
(D) horizontally to the left
(E) toward the charge - Q

In what direction does the medium move relative to the direction of the wave? explain.

Agas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kpa to a final volume of 0.065 m^3 while its temperature is kept constant. how much work is done by the system?

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.