1. The problem statement, all variables and given/known data Find the constant vector field F giving the flux of 5 trough the surface S, a disk of radius 4 perpendicular to both F and the y-axis, and oriented away from the origin. 2. Relevant equations 3. The attempt at a solution I have gone through several articles on the web and searched through my textbook but I cant seem to find any relevant information to assist me making sense of the question.