With Hill 1 set to 75 cm, click Play and allow the car to reach the bottom. A. What is the final speed of the car, in meters per second? B. What is the kinetic energy of the car, in joules? (Use the mass in kg.) C. How does the car’s kinetic energy at the bottom of the hill compare to its potential energy at the top?

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.