Physics - Heat & Thermo Question with Solution | TestHub

A mercury barometer reads 760 mm at the surface of a lake. It is lowered into the lake so that the open mercury reservoir is 5.0 m below the water surface (the tube is long enough). Find the height of the mercury column in mm, to the nearest mm. Density of water $1000\mathrm{kg}/{\mathrm{m}}^3$, density of mercury 13600 $\mathrm{kg}/{\mathrm{m}}^3$.