The velocity field of a fluid is given by: v(x, y, z) = (5, y sin z, cos z) The surface S is the part of the cone (-8)² = 4y² +162² where 0 < x < 8, oriented away from the origin. The flux of the fluid across S is: 0 x (Suggestion: Use the Divergence Theorem, but note that S is not a closed surface.)