Consider a charged particle at a points whose coordinates are (8 m, 4 m, 10 m). we would like to find the electric field vector at a point p whose coordinates are (7 m, 2 m, 6 m). the "unit vector" r ^ is a vector that points from s to p that has length of 1 (or "unity"). what is its y component, in meters

Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.