Are we actually touching nothing but electrons in reality or can we actually feel things without the electron barier?

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 is an advantage of subdividing science into different areas?

3. which is not a primary color of light? blue red green yellow