Three cheers for John's statement of fact!
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Despite my earlier argument that torque and energy SHOULD not have the
same dimensions, it is simply a fact that they do given the convention
that angular displacements are dimensionless. The dimensions of both are
M L^2/T^2. Perhaps you are thinking of some other meaning for the word
"dimensions"?
_____________________
Joel Rauber
Rauberj@mg.sdstate.edu