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17 Cards in this Set

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Density
ρ=m/v

kg/m3
slug/ft3
g/cm3
weight density
ρ(weight)=ρ•g

N/m3
N/cm3
(density must be in Kg!!!)
specific gravity
ρ(fluid or object)/p(water)
ρ weight(fluid/object)/pw(water)

NO UNITS!
Buoyant Force
Fb=ρ(fluid)•g•V(fluid displaced)

N, lb
(density must be kg/m3)
mechanical pressure
P=F/A

N/m2=1Pa
psi
fluid pressure
P=ρ•g•h
P=p weight•h

N/m2=1Pa
psi
absolute pressure
Pabs=Patm•Pgage
Pgage=ρ•g•h
atmosphere pressure=101.3kPa
=14.7psi
density of water
1000kg/m3
1g/cm3
thermal energy
symbol: Q or q
unit: J, cal--> 1cal=4.186J
equation: Q=mcΔT
secific heat capacity
symbol: c
unit: J/kgºC , J/kgºK
equation: Q=mcΔT
change in temperature
symbol: ΔT=Tf-Ti
wavelength
symbol:λ
unit: measure
V=f•λ
frequency
symbol: f
unit: Hz
f=1/T--> T=time
speed of light
c=3x10^8m/s
blue shift
coming towards you
low λ high f
red shift
going away from you
high λ low f
atmospheric pressure
Patm=101.3kPa
=101,300Pa