Not surprisingly, Mr. Sul loves to slide around in his socks when the classroom floor has been freshly waxed. Mr. Sul has a weight of 800N and the coefficient of kinetic friction between his socks and the floor is 0.30 . How strong is the Friction Force that opposes his sliding?

The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force

What happens when chlorine reacts with bromine? a. electrons move from the chlorine atoms to the bromine atoms. b. electrons move from the bromine atoms to the chlorine atoms. c. electrons are shared between the chlorine atoms and the bromine atoms. d. electrons become delocalized among the atoms.

Most of the volume of an atom is occupied by the