Sources separated by \( 20 \mathrm{~m} \) vibrate according to equa...

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Sources separated by \( 20 \mathrm{~m} \) vibrate according to equations \( y_{1}^{\prime}=0.06 \sin \pi t \) metre and \( y_{2}^{\prime}=0.02 \sin \pi t \) metre. They send out
\( \mathrm{P} \) waves along a rod at speed \( 3 \mathrm{~m} / \mathrm{s} \). What is the equation of

W motion of a particle \( 12 \mathrm{~m} \) from the first source and 8 metre from the second?
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