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Transcript
Chapter 11 Forces in Fluids
Fluid Pressure
Air pressure
Balanced pressure
Air is a mixture of gases that make
up Earth’s atmosphere.
These gases press down on
everything on Earth’s surface.
Air exerts pressure because it has
mass.
Balanced pressure explains why the
tremendous air pressure pushing on
you from all sides does not crush
you.
Pressure from fluids inside your
body balances the air pressure
outside your body.