___Pa is the pressure at a depth of 9m below the surface of the water tank. The density of water is 1000kgm3
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Solution
The expression of pressure at the bottom of a liquid of height ‘h’ and density ‘d’ is given by ρgh. The given values are: d=1000kgm3,h=9mandg=10ms2. Thus, pressure=ρgh =1000×9×10=90000Pa .