For the wave described by (SI units)

PHYSICS · Single correct · A Level · Physics · Waves · Waves

Problem

For the wave described by y=0.02sin⁡(5πx−100πt)y=0.02\sin(5\pi x-100\pi t) (SI units), calculate the speed of propagation. (a) 62.8 m s−162.8\,\text{m\,s}^{-1} (b) 20 m s−120\,\text{m\,s}^{-1} (c) 40 m s−140\,\text{m\,s}^{-1} (d) 126 m s−1126\,\text{m\,s}^{-1}

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