Properties of Sound
c=1.3¦RT/M =344 m/s (Air)
c=lf
c=¦ Y/r
dB (decibles) Measures I
L = 10 log10 (I2/I0)
I0=10-12 w/m2
P= P0 cos(wt + f)
amplitude
frequency
phase
w=2šf
I = 1/2 rcA02w2 =1/2 ZA02w2 = 1/2 P02/Z
Z=rc: Acoustic Impedance
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