University Physics Volume 1
18th Edition
ISBN: 9781938168277
Author: William Moebs, Samuel J. Ling, Jeff Sanny
Publisher: OpenStax - Rice University
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Textbook Question
Chapter 14, Problem 103P
At what rate might turbulence begin to develop in a water main with a 0.200-m diameter? Assume a 20°C temperature.
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At what flow rate might turbulence begin to develop in a water main with a 0.200-m diameter? Assume a 20 °C temperature.
Every few years, winds in Boulder, Colorado, attain sustained speeds of 45.0 m/s (about 100 mi/h) when the jet stream descends during early spring.
Approximately what is the force, in units of newtons, due to the Bernoulli effect on a roof having an area of 220 m^2? Typical air density in Boulder is 1.14 kg/m^3, and the corresponding atmospheric pressure is 8.89 x 10^4 N/m^2. (Bernoulli's principle assumes a laminar flow. Using the principle here produces only an approximate result, because there is significant turbulence.)
Every few years, winds in Boulder, Colorado, attain sustained speeds of 45.0 m/s ( about 100 milers per hour ) when the jet stream descends during early spring. Approximately what is the force due to the Bernoulli effect on a roof having an area of 235 m^2? Typical air density in Boulder is 1.14 kg/m^3 and the corresponding atmospheric pressure is 8.89 x 10^4 N/m^2. (Bernoulli's principle as stated in the text assumes laminar flow. Using the principle here produces only an approximate result, because there is significant turbulence.)
Chapter 14 Solutions
University Physics Volume 1
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Ch. 14 - In ballet, dancing en pointe (on the tips of the...Ch. 14 - Atmospheric pressure exerts a large force (equal...Ch. 14 - Why does atmospheric pressure decrease more...Ch. 14 - The image shows how sandbags placed around a leak...Ch. 14 - Is there a net force on a dam due to atmospheric...Ch. 14 - Does atmospheric pressure add to the gas pressure...Ch. 14 - You can break a strong wine bottle by pounding a...Ch. 14 - Explain why the fluid reaches equal levels on...Ch. 14 - Suppose the master cylinder in a hydraulic system...Ch. 14 - More force is required to pull the plug in a full...Ch. 14 - Do fluids exert buoyant forces in a “weightless"...Ch. 14 - Will the same ship float higher in salt water than...Ch. 14 - Marbles dropped into a partially filled bathtub...Ch. 14 - Mary figures in the show streamlines. Explain why...Ch. 14 - You can squirt water from a garden hose a...Ch. 14 - Water is shot nearly vertically upward in a...Ch. 14 - Look back to figure 14.29. Answer the following...Ch. 14 - A tube with a narrow segment designed to enhance...Ch. 14 - Some chimney pipes have a T-shape, with a...Ch. 14 - Is there a limit to the height to which an...Ch. 14 - Why is it preferable for airplanes to take off...Ch. 14 - Roofs are sometimes pushed off vertically a...Ch. 14 - It is dangerous to stud close to railroad tracks...Ch. 14 - Water pressure inside a hose nozzle can be less...Ch. 14 - David rolled down the window on his car while...Ch. 14 - Based on Bernoulli’s equation, what are three...Ch. 14 - The old rubber boot below has leaks. To what...Ch. 14 - Water pressure inside a hose nozzle can be less...Ch. 14 - Explain why the viscosity of a liquid decreases...Ch. 14 - When paddling a canoe upstream, it is wisest to...Ch. 14 - Plumbing usually includes air-filled tubes tear...Ch. 14 - Doppler ultrasound can be used to measure the...Ch. 14 - Sink drains often have a device such as that shown...Ch. 14 - Gold is sold by the troy ounce (31.103 g). 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