Which statement is true about the ideal mechanical advantage of a third-class lever?
it is always equal to 1.
it is always greater than 1.
it is always less than 1.
it can be less than, greater than, or equal to 1.

Which graph best represents the relationship between the electric current and the rate at which a magnet is turning inside an electric generator?

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.

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?