Scenario: You place a round ball (2.8 kg) on a shelf 4.2 m off the ground. The ball then rolls off the shelf at a rate of 0.6 m/s down and falls toward the floor. Using the above information, state a claim evidence, and reasoning. What type of energy does the round ball have?

With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90