questions below:

Use a parametrization to find the flux F . n do of F = 4zk across the portion of the sphere x + y + z = a where x is positive in the direction away from the origin. . . . The flux is . (Type an exact answer in terms of It.)Evaluate V x (2yi) . n do where S is the hemisphere x2 + y2 + zz = 1, z20. Use the normal vectors pointed away from the origin. . . . Vx(2yi) . n do= (Type an exact answer, using It as needed.) S