The quarterback throws the football with a velocity of 17 m/s at an angle of 42 degrees above the horizontal. How far away from the quarterback does the receiver need to be to catch the football? Draw a diagram showing the trajectory of the football.

The force will determine the acceleration.

An object moves from the position +34m to the position -15m in 15 seconds. what is it's total displacement? what is it's average velocity?

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