Let v = be the velocity field of a fluid. Compute the flux of v across the surface where S is the surface oriented away from the origin. Hint: Use the divergence theorem!
A) ∮∮_S v ∙ dS
B) âˆâˆâˆ_S v ∙ dS
C) ∬∬_S v ∙ dS
D) ∯∯_S v ∙ dS