Interconversion of states of matter

The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

Match each type of lever with the correct diagram. 1. first-class 2. third-class 3. second-class