A reflex is an automatic response that occurs very rapidly. Please select the best answer from the choices provided
T Or F

Adding more pulleys to a system of pulleys needed to lift an object. a. increases the force b. decreases the force c. increases the amount of work d. decreases the amount of work

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

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