Calculate the momentum of a 450 kg bear riding a 17 kg bike, moving at 9 m/s

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.

v=ir = 3x15 =45 v