# The amplitude of a surface wave for which (lambda=0.050 mathrm{~m}) is (5.0 mathrm{~mm}) at a distance of

## Question:

The amplitude of a surface wave for which \(\lambda=0.050 \mathrm{~m}\) is \(5.0 \mathrm{~mm}\) at a distance of \(1.0 \mathrm{~m}\) from a point source. What is the amplitude of the wave

**(a)** 10 m from the source and

**(b)** \(100 \mathrm{~m}\) from the source? During a time interval equal to 100 periods, by what percentage does the amplitude of a wavefront decrease \((c)\) after the wavefront passes a position \(1.0 \mathrm{~m}\) from the source and

**(d)** after it passes a position \(100 \mathrm{~m}\) from the source?

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