Calcula la distancia que debe haber entre un pisa papel y una biblia tipo masas son de 250g y 650g con una fuerza cuya magnitud es de 1.85 x 10-6 dinas.

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