An astronaut is working outside the International Space Station where the atmospheric pressure is essentially zero. The pressure gauge on her air tank reads 6.90x10 Pa. What force does the air inside the tank exert on the flat end of the cylindrical tank, a disk 0.150 m in diameter? A) 2.22x105N B) 1.22x104N C) 0.82x105N D) 0.82x106N E) 1.22x105 N. 9. Calculate the pressure at 40 meters below the sea level, assuming the sea water density is same as fresh water.

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