2. A teacher decided to tile his classroom floor using the same pattern. After he was finished, he counted 80 pink tiles on his classroom floor. How many grey tiles did he use?

If forces acting on an object are unbalanced, which factors may result fron an unbalanced force? check all that apply

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.

Which type of energy would have nothing to do with ironing clothes? a. heat b. chemical c. electrical d. mechanical