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Baseball, air pressure, and humidity



Hi:

During today's Yankee/Baltimore game the announcers said that the
ball was carrying further than it did yesterday.

Can this be true? Can air pressure or humidity have a noticeable
effect
on air friction. Or is it perhaps that humidity effects the resiliancy
of
the ball?

Do any of you have any knowledge; either based on theory or from
playing the game?

I'm looking forward to your responses.

Ed Schweber (email: edschweb@ix.netcom.com)
Physics Teacher
Solomon Schechter Day School
West Orange, NJ