Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 12.1, Problem 3cT
Use your answer to part B to compare the pressures at points T and U. (Hint: How is the pressure at point T related to the force on the small volume of water by the water to its left?)
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A pitot tube (the figure) is used to determine the airspeed of an airplane. It consists of an
outer tube with a number of small holes B (four are shown) that allow air into the tube; that
tube is connected to one arm of a U-tube. The other arm of the U-tube is connected to hole A
at the front end of the device, which points in the direction the plane is headed. At A the air
becomes stagnant so that và = 0. At B, however, the speed of the air presumably equals the
airspeed B of the plane.
A pitot tube on a high-altitude aircraft measures a differential pressure of 240 Pa. What is
the aircraft's airspeed if the density of the air is 0.0330 kg/m³?
Number
Pair-
Hole A
B
B
Units
Liquid
Air
h
A pitot tube (the figure) is used to determine the airspeed of an airplane. It consists of an outer tube with a number of small holes B (four are shown) that allow air into the tube; that tube is connected to one arm of a U-tube. The other arm of the U-tube is connected to hole A at the front end of the device, which points in the direction the plane is headed. At A the air becomes stagnant so that vA = 0. At B, however, the speed of the air presumably equals the airspeed B of the plane.A pitot tube on a high-altitude aircraft measures a differential pressure of 230 Pa. What is the aircraft's airspeed if the density of the air is 0.0320 kg/m3?
Solve the problems below.
1. A wind blows at the speec. of 30 m/s across a 175 m2 flat roof of a house.
(a) Whar is the pressure difference between the inside of the house and the
outside of the house just above the roof? (Assume that the air pressure
inside the house is atmospheric pressure.)
(b) Whar is the force on the roof due to the pressure difference?
2. Water e:nters a house frorm a ground pipe with an inside dianmeter of 0.02
m at an absolute pressure of 4.0 x 105 Pa. A pipe that is 0.01 m in diameter
leads to the second-floor bathroom 5.0m above the ground floor. The flow
speed ar the ground pipe :s 1.5 m/s. Find the following:
(a) flow speed on the second floor; and
(b) pressure.
3. Water flows at a rate of 800 cm3/min in a pipe of varying cross-sectional
areas. Calculate the veloc.ty of the water at the section where:
(a) the radius is 3.0 cm; and
(b) the radius is 5.0 cm
2021/3/20 21:08
Chapter 12 Solutions
Tutorials in Introductory Physics
Ch. 12.1 - For each layer, draw a free-body diagram in the...Ch. 12.1 - Imagine that a small hole is opened in the...Ch. 12.1 - Prob. 2aTCh. 12.1 - Suppose you wanted to determine the pressure at...Ch. 12.1 - Prob. 2cTCh. 12.1 - Prob. 2dTCh. 12.1 - Draw a freebody diagram for the small voulme of...Ch. 12.1 - Prob. 3bTCh. 12.1 - Use your answer to part B to compare the pressures...Ch. 12.1 - Prob. 3dT
Ch. 12.1 - Consider the following student dialogue: Student...Ch. 12.1 - Prob. 4aTCh. 12.1 - The right end of the tube is now scaled with a...Ch. 12.1 - A syringe is used to remove some water from the...Ch. 12.2 - A cubical block is observed to float in a beaker...Ch. 12.2 - Prob. 1bTCh. 12.2 - Imagine that you were to release the block from...Ch. 12.2 - In general, does the buoyant force on an object...Ch. 12.2 - By how much does the volume reading increase when...Ch. 12.2 - Does the volume of water displaced by a completely...Ch. 12.2 - Consider the following statement made by a...Ch. 12.2 - A rectangular block, A, is released from rest at...Ch. 12.2 - A second block, B,of the same size and shape as A...Ch. 12.2 - A third block, C, of the same size and shape as A...
Additional Science Textbook Solutions
Find more solutions based on key concepts
41. ǀ You have two cylindrical tanks. The tank with the greater volume is 1.20 times the height of the smaller ...
College Physics (10th Edition)
A flashing lamp in a Christmas earring is based on an RC discharge of a capacitor through its resistance. The e...
University Physics Volume 2
43. Find the area of a rectangle 4.50 m long and 2.20 m wide.
Applied Physics (11th Edition)
A piston-cylinder arrangement containing 0.30 mol of nitrogen at high pressure is in thermal equilibrium with a...
Essential University Physics (3rd Edition)
Choose the best answer to each of the following. Explain your reasoning with one or more complete sentences.
Wh...
Life in the Universe (4th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A box weighs 6.5 newtons [N] and sits on a pallet. The box can be modeled as a rectangular parallelepiped, as shown in the following picture. Assume the pallet is also a rectangle and has the dimensions shown in the picture below. What is the pressure on the pallet in units of pound-force per square inch [psi]? Click the icon to view the conversion table. 0.25 ft [l The pressure is 3 in 20 in 15 in 3.5 ft 4 ft psi. (Round your answer to three decimal places.)arrow_forwardLooking at the figure below, a small parallelepiped of fluid centered on the point, explain why the pressure will be independent of x and z? And what will you need to know to determine the pressure in y?arrow_forwardUse the worked example above to help you solve this problem. An airplane has wings, each with area 4.15 m2, designed so that air flows over the top of the wing at 246 m/s and underneath the wing at 221 m/s. Find the mass of the airplane such that the lift on the plane will support its weight, assuming the force from the pressure difference across the wings is directed straight upwards. Approximately what size wings would an aircraft need on Mars if its engine generates the same differences in speed as in the "Practice It" and the total mass of the craft is 350 kg? The density of air on the surface of Mars is approximately one percent Earth's density at sea level, and the acceleration of gravity on the surface of Mars is about 3.8 m/s2.arrow_forward
- Compute for the surface tension of a force of 3.65 x 10⁷ dyne acting on 7 m². Determine all of your answers in the MKS unit. What is the radius of the capillary tube? What is the diameter of the capillary tube?arrow_forwardIf water is flowing half-full in a circular pipe containing a gas at a constant pressure (as shown in the figure below), how does the pressure at the free water surface change in relation to the pressure of the gas? R= 2 m 0 = a/2arrow_forwardshow all work in logical, detailed form and box in numerical answers. Include a diagram wherever possible. On any problem where an FBD is appropriate, it must be included for maximum credit. All numerical results should be stated to 3.00 or 4.000 significant figures and in mks units unless otherwise noted. Q: Estimate the buoyant force that you are experiencing, right now. You must do this quantitatively, so please use estimations about our size and shape that are reasonable for humans. Justify your choices diagrammatically. The density of air in your room is approximately 1.29 kg/m' and vou may ignore any variations due to temperature. Hint: pick a simple shape, or shapes, to represent you. (Vsphere = 4/3 r, Verldinder= Tr°h, and Vcube = laharrow_forward
- Consider the following figure. A pressure-volume graph is plotted on a coordinate plane, where the horizontal axis is V (m3), and the vertical axis is P (MPa). The path consists of three line segments: a segment from point i (1,8) to (3,8), a segment from (3,8) to (5,2), a segment from (5,2) to point f (7,2). An arrow along the path is aligned such that its tail is closer to point i than is its tip. The area below the segments in the first quadrant is shaded. Horizontal and vertical dashed lines extend from each of the points to divide the shaded area into four rectangles and a triangle. (a) Determine the work done on a fluid that expands from i to f as indicated in the figure.MJ(b) How much work is done on the fluid if it is compressed from f to i along the same path?MJarrow_forwardCompute the gage pressure at the bottom of the dam, if an air bubble upon reaching the water surface has a volume of 7 times than it had at the bottom? Do not write the unit. You will only input the numerical answer in the space provided. Unit of the Correct Answer: kPa Decimal Places required in the final answer: 2arrow_forwardConsider the pressure on a shot putter's hand as he throws the heavy shot. Calculate the average pressure, in newtons per square meter, exerted on the palm of a shotputter's hand by the shot if the area of contact is 48.5 cm^2 and he exerts a force of 795 N on it. P? What is the ratio of this pressure to the atmospheric pressure?arrow_forward
- A 5 cubic meter container is filled with 840kg of granite[density is 2400 kg per cubic meter and the rest of the volume is air density is 1.15 kg per cubic meter. Find the mass of air present in the container. choices: a.5.7534 kg. b.5.3475 kg. c.5.5374 kg. d.5.4375 kg need solution, show cancellation and use proper symbol:)arrow_forwardNote : Read the question carefully and give me the right solution with clear calculations. A piston has an area of 100 cm2. What is the required mass of the piston to exert a pressure of 25 KPa above atmospheric pressure on the gas enclosed in the cylinder?arrow_forwardConsider a flow field represented by the stream function ψ = (4+ID) x3y - (6+ID) x2y2 + (4+ID) xy3. Is this a possible two-dimensional incompressible flow? Is the flow irrotational? Discuss the reasons against your findings. ID is the last two digits of student’s reg. no.eg.008arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:9780321820464
Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON
The Laws of Thermodynamics, Entropy, and Gibbs Free Energy; Author: Professor Dave Explains;https://www.youtube.com/watch?v=8N1BxHgsoOw;License: Standard YouTube License, CC-BY