HE PLeeease help im so tired and i need to SLEEP. Answer the 1s you know 1. How does the mechanical energy of a ball that is starting to fall compare to its total energy just before it hits the floor?

2. When you stand in sunlight, what form of energy is emitted by the sun?

3. An eye doctor wants to design reading glasses that also function as sunglasses. Should the eye doctor use a reflective-transparent material or a reflective-opaque material for the lenses? Support your claim.