Atoms of which pair of elements will form covalent bonds in a compound? ASAP PLZ A. Li and Al
B. C and O
C. Co and Fe
D. Na and F

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

Within a pendulum, as potential energy decreases, energy increases. a. heat b. kinetic c. frictional d. gravitational

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.