Given a water tank that is sitting on a black granite tabletop. The bottom of the tank is made of glass 3 cm. thick from glass by an index of refraction of 1.75. The tank has 10 cm. of water in it. If a light beam hits the surface of water at an angle of incidence of 45o, at what angle from vertical will the light ray hit the granite table top after passing during the water and the glass bottom?