Question: sound wave is described by ( , ) = 0 . 0 2 sin ( 8 . 9 6 + 3 1 4 0 +

sound wave is described by (,)=0.02 sin (8.96+3140+
4), where y is in m, t and is
in s, and D is in mm.
(a) In what direction is the wave traveling?
(b) Along which axis is the air oscillating?
(c) What is the wavelength?
(d) What is the wave speed?
(e) What is the period of oscillation?

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