Ajet plane is speeding down the runway during takeoff. air resistance is not negligible, friction is negligible.

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

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value

How are positive ions different from neutral atoms