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Physics Test 3
I’M REALLY GONNA DIE

Impulse

ton  seconds (N  s)

 
J  Ft
Time interval
impuls
e

force

Linear Momentum



p  mv
kilogram  meter/second (kg  m/s)

Impulse Momentum Theorum

 




 F t  mvf  mvo

Principle Of Conservation of Linear
Momentum


The total linear momentum of an isolated system is
conserved
...
No work is done by
nonconservative forces
...

Work is done by nonconservative forces; this usually
means energy is lost to permanent deformation or heat

Conservation of Energy of Swinging
Things

m1  m2 gh f



1
2

m1  m2 v

2
f

Density

m

V

Pressure

Pressure

F
P
A

Force

Area

Atomospheric Presssure

Pressure and Depth
F

y

 P2 A  P A  mg  0
1

P2 A  P A  mg
1
P2 A  P A   Vg
1

P2 A  P A   Ahg
1

P2  P   gh
1

Gauge Pressure

Patm   gh

P2  Patm   gh

 
gaugepressure

Pascal’s Principle


Any change in the pressure applied to a completely
enclosed fluid is transmitted undiminished to all parts of
the fluid and enclosing walls
...
0 10 N m 12 10
11

2

6

C  19 C   4
...




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