Some miners wish to remove water from a mine shaft. A pipe is lowered to the water 90 m
Chapter 11, Problem 84(choose chapter or problem)
Some miners wish to remove water from a mine shaft. A pipe is lowered to the water 90 m below, and a negative pressure is applied to raise the water. (a) Calculate the pressure needed to raise the water. (b) What is unreasonable about this pressure? (c) What is unreasonable about the premise?
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