What do the celsius scale and kelvin scale have in common? a. both have the same temperature difference between degrees. b. both are related through a common temperature for boiling water. c. both use zero degrees as the freezing point of water. d. both were invented before the fahrenheit scale.

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.