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Q. (a) compute the absolute pressure at the bottom of a freshwater lake at a point whose depth is 25.5 m. assume the density of the water is 1.00 x10^3 kg/m3 and the air above is at the pressure of 101.3 kPa.

(b) What force is exerted by the water on the window of an underwater vehicle at this depth if window is circular and has a diameter of 32.4 cm?

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