Which diagram represents the directions of the velocity, V, and accelerations, a, of a toy car as it moves in a clockwise, horizontal, circular path at a constant speed?

What are chlorofluorocarbons and what impact do they have on the atmosphere?

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

What part of the ear is names after tools, such as the hammer and the anvil?