physics 131
Semester 2
January
2024
, Week 1- static fluids I
fluid-liquid or
gas
density (P) density (P)
↳ fluid has
each identifying
m
D =
Y
Pressure · force applied to an area Idetermines if object floats
-
force + to surface
Pwater =
19/cm3 =
1000kg/m3
101 . 3 kpa or 101300pa
Fluid pressure in elquid I gas WEIGHT
ATMOSPERIC
pressure (pascels)
P ,
=
Ogh + Patm
p =
E
&
Pressure
fluid &
here should
atmospheric
include
pressure
↑ un
fluids
un
open
so
container
atm
P
, Pgh + Patm whats the P2 if filled water
=
Ex pressure at , w/
·
P2 =
P1 +
@ same heights ,
pressure will be equal
Patm =
101300 pa
om P2 = Patm +
Ogn
-
=
101300 +
1000 (9 .
8) (4) =
140500pa >
-
140 .
5 kpa
Pascals principle
-
pressure changes to an enclosed fluid is transmitted throughout
vessel undiminished
pr
S
= Y
ame
X
Ex hydraulic press
&
> F
P
P =
Pa and p = -
Atmospheric Pressure weight of air above point
-
↳
Hydrostatic equation pressure is at bottom of diff sized container
-
same
I height is same
↓
Pabs =
Pgauge
+
Patm > systolic >
-
max blood pressure
why ?
-
diastolic min . blood pressure
Sanger
(p v initial p trapped
sameilogn
* equilibrium a
Patm +
Ogn is the
pregn en i s
Pe can be found
Summary
:
fluids a same height have same pressure
pascel's principal-keeping all pressure the same throughout vessel
equilibrium can be used
Semester 2
January
2024
, Week 1- static fluids I
fluid-liquid or
gas
density (P) density (P)
↳ fluid has
each identifying
m
D =
Y
Pressure · force applied to an area Idetermines if object floats
-
force + to surface
Pwater =
19/cm3 =
1000kg/m3
101 . 3 kpa or 101300pa
Fluid pressure in elquid I gas WEIGHT
ATMOSPERIC
pressure (pascels)
P ,
=
Ogh + Patm
p =
E
&
Pressure
fluid &
here should
atmospheric
include
pressure
↑ un
fluids
un
open
so
container
atm
P
, Pgh + Patm whats the P2 if filled water
=
Ex pressure at , w/
·
P2 =
P1 +
@ same heights ,
pressure will be equal
Patm =
101300 pa
om P2 = Patm +
Ogn
-
=
101300 +
1000 (9 .
8) (4) =
140500pa >
-
140 .
5 kpa
Pascals principle
-
pressure changes to an enclosed fluid is transmitted throughout
vessel undiminished
pr
S
= Y
ame
X
Ex hydraulic press
&
> F
P
P =
Pa and p = -
Atmospheric Pressure weight of air above point
-
↳
Hydrostatic equation pressure is at bottom of diff sized container
-
same
I height is same
↓
Pabs =
Pgauge
+
Patm > systolic >
-
max blood pressure
why ?
-
diastolic min . blood pressure
Sanger
(p v initial p trapped
sameilogn
* equilibrium a
Patm +
Ogn is the
pregn en i s
Pe can be found
Summary
:
fluids a same height have same pressure
pascel's principal-keeping all pressure the same throughout vessel
equilibrium can be used
