14.6 Bernoulli’s Equation

Energy conservation along a streamline relating pressure, speed, and height, applied to lift, atomizers, and efflux from an open tank.

University Physics Volume 1, 14.6 Bernoulli’s Equation

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9 exercises

14.6 Exercise 2

Water is shot nearly vertically upward in a decorative fountain and the stream is observed to broaden as it rises. Conversely, a stream of water falling straight down from a faucet narrows. Explain why.

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14.6 Exercise 6

Is there a limit to the height to which an entrainment device can raise a fluid? Explain your answer.

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14.6 Exercise 8

Roofs are sometimes pushed off vertically during a tropical cyclone, and buildings sometimes explode outward when hit by a tornado. Use Bernoulli’s principle to explain these phenomena.

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14.6 Exercise 10

Water pressure inside a hose nozzle can be less than atmospheric pressure due to the Bernoulli effect. Explain in terms of energy how the water can emerge from the nozzle against the opposing atmospheric pressure.

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14.6 Exercise 12

Based on Bernoulli’s equation, what are three forms of energy in a fluid? (Note that these forms are conservative, unlike heat transfer and other dissipative forms not included in Bernoulli’s equation.)

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14.6 Exercise 14

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14.6 Exercise 15

Verify that pressure has units of energy per unit volume.

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14.6 Exercise 17

If the pressure reading of your pitot tube is 15.0 mm Hg at a speed of 200 km/h, what will it be at 700 km/h at the same altitude?

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14.6 Exercise 19

What is the pressure drop due to the Bernoulli Effect as water goes into a 3.00-cm-diameter nozzle from a 9.00-cm-diameter fire hose while carrying a flow of 40.0 L/s? (b) To what maximum height above the nozzle can this water rise? (The actual height will be significantly smaller due to air resistance.)

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