The gauge pressure 1 mm below the water surface open to the atmosphere is [Density of water-10 kg/m', atmospheric pressure-101.3 kPa) (a) 101310 Pa (b) 101290 Pa (c) 10 Pa (d) 1.0 Pa.
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At a depth of 1000 m in an ocean (a) What is the absolute pressure? (b) What is the gauge pressure? (c) Find the force acting on the window of area 20 cm×20 cm of a submarine at this depth, the interior of which is maintained at sea level atmospheric pressure. (The density of sea water is 1.03×10
3
kg/m
3
, g=
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