Table 4.5
Impedance  Mechanical  Specific  Acoustic  Analogous circuits 

f
=
drop
u
=
flow

p
=
drop
u
=
flow

p
=
drop
U
=
flow


ka < 0.5:
Series resistance,
R
Series resistance, R
Mass, M
_{1}
Compliance, C
_{1} ka > 5:
Resistance, R
_{2}

${R}_{M}=\frac{8{a}^{6}{\rho}_{\text{0}}{\omega}^{4}}{27\pi {c}^{3}}$
${M}_{}$ 
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