years, In Bou speeds of 45 100 mi/h) when the jet stream descends during early spring. Approximately s the force due to the Bernoulli effect on a roof having an area of 220 m²? | air density in Boulder is 1.14 kg/m³, and the corresponding atmospheric re is 8.89 × 104 N/m². (Bernoulli's principle as stated in the text assumes r flow. Using the principle here produces only an approximate result, because

years, In Bou speeds of 45 100 mi/h) when the jet stream descends during early spring. Approximately s the force due to the Bernoulli effect on a roof having an area of 220 m²? | air density in Boulder is 1.14 kg/m³, and the corresponding atmospheric re is 8.89 × 104 N/m². (Bernoulli's principle as stated in the text assumes r flow. Using the principle here produces only an approximate result, because

Name: i need help answering 2 queshtions Every few years, winds in Boulder,
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Description: i need help answering 2 queshtions 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. Approximatelywhat is the force due to the Bernoulli effect on a roof

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter14: Fluid Mechanics

Section: Chapter Questions

Problem 82P: Water emerges straight down from a faucet with a 1.80-cm diameter at a speed of 0.500 m/s. (Because...

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Concept explainers

Fluid Pressure

The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.

Gauge Pressure

Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.

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Question

i need help answering 2 queshtions

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 due to the Bernoulli effect on a roof having an area of 220 m?
Typical air density in Boulder is 1.14 kg/m³, and the corresponding atmospheric
pressure is 8.89 × 10ª N/m². (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.)
Select the correct answer
O 1.45 × 105 N
O 2.54 × 105 N
O 6.08 × 104 N
O 8.44 x 104 N
O 9.78 × 104 N

Water emerges straight down from a faucet with a 2.50-cm diameter at a speed of
2.18 m/s. (Because of the construction of the faucet, there is no variation in speed
across the stream.) What is the diameter of the stream 0.200 m below the faucet?
Neglect any effects due to surface tension.
Select the correct answer
O 1.79 cm
O 2.15 cm
O 2.81 cm
O 1.38 cm
O 1.21 cm

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