questions below:

Find the surface integral of the eld F(x,y,z) = 102k across the portion of the sphere x2 + y2 + 22 = a2 in the rst octant in the direction away from the origin. The surface integral is . (Type an exact answer, using it as needed.) Find the outward flux of the field F = 8xyi + 4yzj + 4xzk across the surface of the cube cut from the first octant by the planes x = a, y = a, z= a. . . . The outward flux of the field F across the cube is equal to