The moon has it the greatest effect on earths what ?

Which notation is used to represent an alpha particle? a. b. c. d.

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.

Which system of units is used by only a small number of countries in the world, including the u.s.