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The mean density of sea water is rho, an...

The mean density of sea water is `rho`, and bulk modulus is B. The change in density of sea water in going from the surface of water to a depth of `h` is

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`m=vrho, o rho dv+v drho rArr rho.dv=-v.drho`
`(dv)/(v)-(drho)/(rho) rArr =(-P)/((dv)/(v)) rArr K=(-(h rho g))/(-(drho)/(rho)) rArr K=(rho p^(2)g)/(d rho), d rho=(rho^(2)gh)/(K)`
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