Aperson walks 2 meters/ second for 30 seconds how far did they walk

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

Why don't you see your reflection in water with waves or repples

What is the temperature in degrees celsius of a substance with a tempature of 49k