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17 Cards in this Set
- Front
- Back
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Density
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ρ=m/v
kg/m3 slug/ft3 g/cm3 |
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weight density
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ρ(weight)=ρ•g
N/m3 N/cm3 (density must be in Kg!!!) |
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specific gravity
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ρ(fluid or object)/p(water)
ρ weight(fluid/object)/pw(water) NO UNITS! |
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Buoyant Force
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Fb=ρ(fluid)•g•V(fluid displaced)
N, lb (density must be kg/m3) |
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mechanical pressure
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P=F/A
N/m2=1Pa psi |
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fluid pressure
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P=ρ•g•h
P=p weight•h N/m2=1Pa psi |
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absolute pressure
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Pabs=Patm•Pgage
Pgage=ρ•g•h atmosphere pressure=101.3kPa =14.7psi |
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density of water
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1000kg/m3
1g/cm3 |
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thermal energy
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symbol: Q or q
unit: J, cal--> 1cal=4.186J equation: Q=mcΔT |
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secific heat capacity
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symbol: c
unit: J/kgºC , J/kgºK equation: Q=mcΔT |
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change in temperature
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symbol: ΔT=Tf-Ti
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wavelength
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symbol:λ
unit: measure V=f•λ |
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frequency
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symbol: f
unit: Hz f=1/T--> T=time |
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speed of light
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c=3x10^8m/s
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blue shift
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coming towards you
low λ high f |
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red shift
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going away from you
high λ low f |
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atmospheric pressure
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Patm=101.3kPa
=101,300Pa |
