Pressure 2007

# Pressure 2007 - Back to the Past Back What is it that moves...

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Back to the Past Back to the Past What is it that moves from a musical instrument to our brain?

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Sorry this is late in posting
Remember Sound ---

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Wave Hits Tympanic Membrane Tympanic Membrane Pressure Wave To Brain
The outer ear?

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Some Questions: What is pressure? Where does it come from? How is this stuff related to a weather nap??
Throw a ball at the wall One Ball: Time Force on the “Wall” F Average Force

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Time Force on the “Wall” More Balls Average Force
Multiple throwing “channels” Bigger the AREA the bigger the FORCE Bigger the AREA the bigger the FORCE

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Conclusions The more balls per unit time, the more the force on the wall. The faster the balls, the more the force on the wall. The heavier the balls, the more force on the wall. For an “extended” stream of balls, the larger the WALL WALL , the more the total total force on the wall.
More on Balls

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Consider a ball of mass m with a “velocity” v m v IMPORTANT DEFINITION momentum = (mass) x (velocity) or p=mv
Remember??

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## This note was uploaded on 07/24/2011 for the course MUS 3930 taught by Professor Bindell during the Fall '07 term at University of Central Florida.

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Pressure 2007 - Back to the Past Back What is it that moves...

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