At a depth of 1000 m in an ocean (a) what is the absolute pressure? (b) what is the auge pressure?

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 windown of area
20cm *20cm
of a submarine at this depth, the interior of
which is maintained at sea-level atmospheric
pressure.
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