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The direction of an acoustic wave, traveling in a medium having ρ=1.275 Kg/m3, is determined by...

  1. The direction of an acoustic wave, traveling in a medium having ρ=1.275 Kg/m3, is determined by the propagation vector

k=9πi-12πj-15πk m-1

If the intensity of the incident wave is 0.114 W/m2 and its amplitude is 10 Pa, determine: (i) The wavelength of the wave, (ii) its velocity, (iii) its period and (iv) the power received due to its normal incidence on a detector of area 10cm2.

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