Question 5 of 10 Which of the following describes an action-reaction pair?
A. You push on a car, and the car pushes back on you.
B. You push down on your shoe, and Earth's gravity pulls down on the
shoe.
C. The Moon pulls on Earth, and Earth pulls on the Sun.
D. A book pushes down on a table, and the table pushes down on the
Earth

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.