Four equal +6.00-μc point charges are placed at the corners of a square 2.00 m on each side. (k = 1/4π ε0= 8.99 × 109 n · m2/c2) (a) what is the electric potential (relative to infinity) due to these charges at the center of this square? 153 kv previous answers correct part b (b) what is the magnitude of the electric field due to these charges at the center of the square? n/c

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.

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.

Scientists follow specific processes in order to determine valid explanations and conclusions from observations. david observed strange lights in the sky above his home outside of roswell, new mexico. the only explanation that makes sense to him is that there are ufos in the area. what should david do next to verify his explanation?