Three point charges are located at the corners of an equilateral triangle with a side of 0.5m, as shown below a) calculate the net electric force on the 7.0hc charge. b) how would the answer change if both the lower charges have their signs flipped (but are unchanged in magnitude)?

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

An alien spaceship is 500 m above the ground and moving at a constant velocity of 150 m/s upwards. how high above the ground is the ship after 5 seconds?

Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.