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The motion of a liquid in a cylindrical container of radius 3 is described by the...

The motion of a liquid in a cylindrical container of radius 3 is described by the velocity field F(x, y, z). Find S (curl F) · N dS, where S is the upper surface of the cylindrical container. F(x, y, z) = (− 1/6) y^3 i + (1/6) x^3 j + 2k

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