Physics

Physics

Problem

At t=0t = 0, a compression of a sound wave is at x=0.60 mx = 0.60\,\text{m}. At t=2.0 mst = 2.0\,\text{ms}, the same compression is observed at x=0.90 mx = 0.90\,\text{m}. The wavelength obtained from the displacement–position graph is 0.30 m0.30\,\text{m}. Determine the speed and direction of propagation of the wave. a) 75 m s−175\,\text{m\,s}^{-1} toward +x+x−direction b) 300 m s−1300\,\text{m\,s}^{-1} toward +x+x−direction c) 150 m s−1150\,\text{m\,s}^{-1} toward +x+x−direction d) 150 m s−1150\,\text{m\,s}^{-1} toward −x-x−direction

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