An object undergoes uniform circular motion on the end of a string before it is released. In what angle, relative to the radius, does it continue its motion? A. 0 degrees

B. 180 degrees

C. 45 degrees

D. 90 degrees

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.