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Unread 29-06-2005, 00:26
sanddrag sanddrag is offline
On to my 16th year in FRC
FRC #0696 (Circuit Breakers)
Team Role: Teacher
 
Join Date: Jul 2002
Rookie Year: 2002
Location: Glendale, CA
Posts: 8,507
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Pressure physics problems

When doing pressure physics problems like finding the pressure at the bottom of a swimming pool, do you have to add in the atmospheric pressure (101,325 Pa)? Or is pressure at the surface of the water typically taken to be zero?

EDIT: Atmospheric pressure is always taken into consideration in open containers. So in the swimming pool, yes you would add the atmospheric pressure to the pressure due to the depth of the water. In something like a dam, there is atmospheric pressure pressing on the top of the water and on the dry side of the dam, so it cancels out and does not need to be considered.
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Teacher/Engineer/Machinist - Team 696 Circuit Breakers, 2011 - Present
Mentor/Engineer/Machinist, Team 968 RAWC, 2007-2010
Technical Mentor, Team 696 Circuit Breakers, 2005-2007
Student Mechanical Leader and Driver, Team 696 Circuit Breakers, 2002-2004

Last edited by sanddrag : 29-06-2005 at 03:07.
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