Find the curl of V =[2y,5x,0] and the divergence of v(x,y,z)=v1(x,y,z)i+v2(x,y,z)J+v3(x,y,z)k=x2i+y2j+z2k Which vorticity vector is useful in weather studies for understanding severe convective storms and tornadoes, since in strong updrafts.