The lever allows jeff 150 pounds to lift a much greater weight 600 pounds because a) the larger force is applied over a longer distance b) the larger force is applied over a shorter distance c) the smaller force is applied over a longer distance d) the smaller force is applied over a shorter distance

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

What is the measurement of how fast an object moves relative to a reference point?

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?