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Re: [Phys-l] question about Bernoulli


On Nov 18, 2010, at 6:47 PM, brian whatcott wrote:

You certainly know, as we all do, that moving a column of air down a
pipe reduces the pressure
at the pipe wall, which implies the reduction of the kinetic energy in
that direction, which implies lower normal velocity. ...

Howdy,

I think much more precision is needed here. Kinetic energy is a scalar quantity and has no direction.

Good Luck,

Herb Schulz
(herbs at wideopenwest dot com)