Real-world efficiencies are generally very high, in the 90 percent range. Please select the best answer from the choices provided. T F

An observer that stands still as the electron moves by him, will observe

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

Which type of basaltic lava flow has a fairly smooth