When solving vector addition problems you can use either the graphical
method or the

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

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

Can anybody me with this? ? (picture included.)