Water at a gauge pressure of p = 5.8 atm at street level flows into an office building at a speed of 0.68 m/s through a pipe 5.0 cm in diameter. the pipe tapers down to 2.6 cm in diameter by the top floor, 16 m above, where the faucet has been left open. assume no branch pipes and ignore viscosity.
a. calculate the flow velocity. express your answer to two significant figures and include the appropriate units.
b. calculate the gauge pressure in the pipe on the top floor.

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i have found an answer to your question but use it as information.

information: because weak acids/bases have low concentration of hydrogen ions, the addition of water has a large impact on the ph. 2. a difference in 1 unit is a 10x difference in concentration for example; a liquid with ph of 3 is 10x more acidic than a liquid with a ph of 4. therefore, a liquid with a ph of 3 is stronger.

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as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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