Evaluate the divergence of the vector field

[DODGEVIPER13]

Homework Statement

Evaluate the divergence of the following vector fields
(a) A= XYUx+Y^2Uy-XZUz
(b) B= ρZ^2Up+ρsin^2(phi)Uphi+2ρZsin^2(phi)Uz
(c) C= rUr+rcos^2(theta)Uphi

Homework Equations

The Attempt at a Solution

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[PhysicsandSuch]

Don't know if this post is still important to you since it's a little old, but your expression for the divergence in polar coordinates is incorrect, as there are extra factors in the formula (it's not the same as you would in Cartesian). Take another look at it.

See here https://www.physicsforums.com/showthread.php?t=257816

 

[DODGEVIPER13]

Ok thanks man yah I figured out some of that and fixed it before turning that homework in

 

[PhysicsandSuch]

Cool