Mr. Wilson jumps off the Empire State Building, if his mass is 204 kg. What is the force pulling him toward the ground? What is his velocity after 3 seconds? What is his momentum after 3 seconds?

Explain why the aperture of the spherical mirror should be small compared to the radius of curvature of the mirror.

Diamond will scratch quartz. true or false

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