My Notes Ask Your Teache 0/2 points | Previous Answers SCalccC4 13.6.025. Evaluate the surface integral JJs F. ds for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x, y, z) -xi zj yk s is the part of the sphere x2y 22 36 in the first octant, with orientation toward the origin. Need Help? WathTak to a Tutor Talk to a Tutor Submit Answer Save Progress Practice Another Version