A 12.00 kg toy falls from a height of 5.00 m. What will the kinetic energy of the toy be just before the toy hits the ground?

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?

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.