Suppose a skydiver (mass = 75kg) is falling toward the earth. when the skydiver is 100m above the earth, he is moving at 60m/s. at this point, calculate the skydiver’s: • gravitational potential energy • kinetic energy • total mechanical energy (kinetic + potential)

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created or , but it can be

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

Ain is , is 's of ? 0.62 0.79 1.27 1.50