The region W lies between the spheres x2+y2+z2=9 and x2+y2+z2=16 and within the cone z=x2+y2‾‾‾‾‾‾‾√ with z≥0; its boundary is the closed surface, S, oriented outward. Find the flux of F⃗ =x3i⃗ +y3j⃗ +z3k⃗ out of S.