A rigid body is rotating about a fixed axis along the z-direction with
a constant angular velocity ?. Using spherical polar coordinates,
calculate 
a.	calculate   . ? 
b.	 calculate    X ? 
c.	 calculate v= ? X r
d.	 calculate   . V
e.	 calculate   X v

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Clarification of Question by guggilla-ga on 14 Apr 2004 10:33 PDT

A rigid body is rotating about a fixed axis along the z-direction with
a constant angular velocity ?. Using spherical polar coordinates,
calculate 
a.	calculate   divergence of  ? 
b.	 calculate    curl of ? 
c.	 calculate v= ? X r
d.	 calculate   Divergence of  v
e.	 calculate   curl of v