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The manometer shown below is used to mea...


The manometer shown below is used to measure the difference in water level between the two tanks. Calculate this difference for the conditions indicated.

Text Solution

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`p_(a)+h_(1)rhog-40rho_(1)g+40rhog=p_(a)+h_(2)rhog`
`h_(2)rhog-h_(1)rhog=40rhog-40rho_(1)g` as `rho_(1)=0.9rho`
`(h_(2)-h_(1))rhog=40rhog-36rhog`
`h_(2)-h_(1)=4cm`
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