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Problem 21 JOONG BOOKS/² + 150000-101300)=1/₂2 Firemen are using hoses to fight a brush fire in hilly terrain. Water is flowing from a pump-truck into one of those fire hoses with a velocity of 1.0 m/s and a pressure of 200000 Pa. At the nozzle the pressure decreases to atmospheric pressure (101300 Pa), and the velocity is 18 m/s. Are the firemen working uphill or downhill from the pump-truck, how far up or down? Use the Bernoulli equation to calculate the difference in height. (Hint: The density of water is 1000 kg/m' and gravity g is 9.8 m/s². Pay attention to units!)] Problem 3 Through a refinery, fuel ethanol is flowing in a pipe at a velocity of 1 m/s and a pressure of 101300 Pa. The refinery needs the ethanol to be at a pressure of 2 atm (202600 Pa) on a lower level. How far must the pipe drop in height in order to achieve this pressure? Assume the velocity does not change. (Hint: Use the Bernoulli equation. The density of ethanol is 789 kg/m3 and gravity g is 9.8 m/s2. Pay attention to units!)

Problem 21 JOONG BOOKS/² + 150000-101300)=1/₂2 Firemen are using hoses to fight a brush fire in hilly terrain. Water is flowing from a pump-truck into one of those fire hoses with a velocity of 1.0 m/s and a pressure of 200000 Pa. At the nozzle the pressure decreases to atmospheric pressure (101300 Pa), and the velocity is 18 m/s. Are the firemen working uphill or downhill from the pump-truck, how far up or down? Use the Bernoulli equation to calculate the difference in height. (Hint: The density of water is 1000 kg/m' and gravity g is 9.8 m/s². Pay attention to units!)] Problem 3 Through a refinery, fuel ethanol is flowing in a pipe at a velocity of 1 m/s and a pressure of 101300 Pa. The refinery needs the ethanol to be at a pressure of 2 atm (202600 Pa) on a lower level. How far must the pipe drop in height in order to achieve this pressure? Assume the velocity does not change. (Hint: Use the Bernoulli equation. The density of ethanol is 789 kg/m3 and gravity g is 9.8 m/s2. Pay attention to units!)

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Problem 2 Bork, NG (2) Books/2²27 + 1500100-101300)=1/2₂ 9=18m/5² Firemen are using hoses to fight a brush fire in hilly terrain. Water is flowing from a pump-truck into one of those fire hoses with a velocity of 1.0 m/s and a pressure of 200000 Pa. At the nozzle the pressure decreases to atmospheric pressure (101300 Pa), and the velocity is 18 m/s. Are the firemen working uphill or downhill from the pump-truck, how far up or down? Use the Bernoulli equation to calculate the difference in height. (Hint: The density of water is 1000 kg/m' and gravity g is 9.8 m/s². Pay attention to units!)] Problem 3 Through a refinery, fuel ethanol is flowing in a pipe at a velocity of 1 m/s and a pressure of 101300 Pa. The refinery needs the ethanol to be at a pressure of 2 atm (202600 Pa) on a lower level. How far must the pipe drop in height in order to achieve this pressure? Assume the velocity does not change. (Hint: Use the Bernoulli equation. The density of ethanol is 789 kg/m3 and gravity g is 9.8 m/s2. Pay attention to units!) BA
Transcribed Image Text:Problem 2 Bork, NG (2) Books/2²27 + 1500100-101300)=1/2₂ 9=18m/5² Firemen are using hoses to fight a brush fire in hilly terrain. Water is flowing from a pump-truck into one of those fire hoses with a velocity of 1.0 m/s and a pressure of 200000 Pa. At the nozzle the pressure decreases to atmospheric pressure (101300 Pa), and the velocity is 18 m/s. Are the firemen working uphill or downhill from the pump-truck, how far up or down? Use the Bernoulli equation to calculate the difference in height. (Hint: The density of water is 1000 kg/m' and gravity g is 9.8 m/s². Pay attention to units!)] Problem 3 Through a refinery, fuel ethanol is flowing in a pipe at a velocity of 1 m/s and a pressure of 101300 Pa. The refinery needs the ethanol to be at a pressure of 2 atm (202600 Pa) on a lower level. How far must the pipe drop in height in order to achieve this pressure? Assume the velocity does not change. (Hint: Use the Bernoulli equation. The density of ethanol is 789 kg/m3 and gravity g is 9.8 m/s2. Pay attention to units!) BA
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