Example for Chapter 1 : Units
How does the speed of sound in air depend on air pressure?
All quantities that might matter:
v
[m/s]
Speed of sound
P
0
[N/m
2
]
Pressure
<rho>
0
[kg/m
3
]
Density
m
ave
[kg]
Molecular Mass
1 N = 1 kg m / sec
2