6.44 acoustic mass; inertance. At a frequency for which inertial forces are dominant, quotient of sound pressure by the resulting in-phase volume acceleration during sinusoidal motion. Unit, pascal per (cubic meter per second squared) [Pa/(m3/s2)], or...
6.43 acoustic reactance. Imaginary part of acoustic...
6.42 acoustic resistance. Real part of acoustic...
6.41 acoustic impedance. At a specified surface, complex quotient of acoustic pressure by volume velocity through the surface. Unit, pascal per (cubic meter per second) [Pa/(m3/s)]....
6.40 equilibrium density.
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