In: Physics
Use the Divergence Theorem to evaluate ∫ ∫ S F ⋅ d S where F=〈2x^3,2y^3,4z^3〉 and S is the sphere x2+y2+z2=16 oriented by the outward normal.
According to divergence theorem
Now,
In spherical coordinates(as the surface is a sphere),
(As surface is a sphere of radius 4)
Let, , then
Hence,