which principle explains why covering the end of the hose cause the water to flow faster. Bernoulli's lawBoyel's lawPascal's lawCharle's lawSave
Question
which principle explains why covering the end of the hose cause the water to flow faster. Bernoulli's lawBoyel's lawPascal's lawCharle's lawSave
Solution
The principle that explains why covering the end of a hose causes the water to flow faster is Bernoulli's law. This law states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy. So when you cover the end of the hose, you decrease the area for the water to flow out, which increases its speed.
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Water is flowing in a fire hose with a velocity of 1.0 m/s and a pressure of 200000Pa. At the nozzle the pressure decreases to atmospheric pressure (101300 Pa), thereis no change in height. Use the Bernoulli equation to calculate the velocity of thewater exiting the nozzle. (Hint: The density of water is 1000 kg/m3 and gravity g is9.8 m/s2. Pay attention to units!)]a. 14m/sb.12 m/sc.7m/sd.13 m/s
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