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The pressure at the bottom of an 18 ft deep storage tank for gasoline is how much greater than at the top? Express your answer in the units of psi.

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Perplexed20
5.85 psig

Using a specific gravity of 0.75 as an average for red\automobile gasoline.

Water at standard conditions (60 degF) is 2.31 feet = 1 psig

80/2.31 then multiply x .75 to compensate for specific gravity of water being 1.0

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