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August 21, 2014

Homework Help: physic

Posted by Chan on Thursday, November 26, 2009 at 3:56am.

Hi! need help please thank you so much.
Question:(a) Calculate the absolute pressure at the bottom of a freshwater lake at a depth of 28.7 m. Assume the density of the water is 1.00 103 kg/m3 and the air above is at a pressure of 101.3 kPa.
___Pa

(b) What force is exerted by the water on the window of an underwater vehicle at this depth if the window is circular and has a diameter of 40.9 cm?
___ N

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