Re: Student Question

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1 total messages Started by Steve Luzader Tue, 29 Nov 1994 15:40

#1021

Author: Steve Luzader
Date: Tue, 29 Nov 1994 15:40

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   David Bailey's suggested experiment about the egg timer reminds me
of a demonstration I used to do about the birds in the truck.  Put a
beaker of water on one side of a double pan balance and add masses to
the other side until it's balanced.  Ask the students what will happen
if you put the end of your finger in the water but don't actually
touch any part of the beaker.  Will the pan with the beaker stay put,
move up, or move down when the end of your finger is in the water?  (I
leave the answer as an exercise for the reader.)

Steve Luzader
Frostburg State University
sluzader@fre.fsu.umd.edu

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