Rachel is making cookies. she pours 1/2 cup of oil into a bowl, followed by 1 cup of water. the oil rises to the surface of the bowl. why?

Define the meaning of the unalienable rights of life liberty and persuit of happiness

How much force must a locomotive exert on a 12840-kg boxcar to make it accelerate forward at 0.490 m/s2?

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