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y1 = 8 sin (omegat - kx) and y2 = 6 sin ...

`y_1 = 8 sin (omegat - kx) and y_2 = 6 sin (omegat + kx)` are two waves travelling in a string of area of cross-section s and density rho. These two waves are superimposed to produce a standing wave.
(a) Find the energy of the standing wave between two consecutive nodes.
(b) Find the total amount of energy crossing through a node per second.

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`(2 rho omega^2s)/k`
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AAKASH SERIES-WAVE MOTION AND SOUND-PROBLEMS (LEVEL - II)
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