Thermodynamics: An Engineering Approach
9th Edition
ISBN: 9781259822674
Author: Yunus A. Cengel Dr., Michael A. Boles
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 1.11, Problem 100RP
An air-conditioning system requires a 35-m-long section of 15-cm-diameier ductwork to be laid underwater. Determine the upward force the water will exert on the duct. Take the densities of air and water to be 1.3 kg/m5 and 1000 kg/m5 respectively.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
An air-conditioning system requires a 35-m-long section of 15-cm diameter duct workto be laid underwater. Determine the upward force the water will exert on the duct.Take the densities of air and water to be 1.3 kg/m3 and 1000 kg/m3, respectively.
The hydraulic lift in a car repair shop has an output diameter of 30 cm and is to lift cars up to 2500 kg. Determine the fluid gage pressure that must be maintained in the reservoir.
A water storage tank contains water whose level is 18 meters above the bottom of the tank. A flexible rubber pipe is connected to the bottom of the tank, and the outlet tip of the rubber pipe is pointed in a vertical upward position. The water storage tank is sealed to maintain the air pressure gage inside the tank at 206 kiloPascal. The maximum height in meters to which the water stream could rise vertically is-------- meters.
Chapter 1 Solutions
Thermodynamics: An Engineering Approach
Ch. 1.11 - The value of the gravitational acceleration g...Ch. 1.11 - One of the most amusing things a person can...Ch. 1.11 - An office worker claims that a cup of cold coffee...Ch. 1.11 - What is the difference between the classical and...Ch. 1.11 - Explain why the light-year has the dimension of...Ch. 1.11 - What is the difference between pound-mass and...Ch. 1.11 - What is the net force acting on a car cruising at...Ch. 1.11 - What is the weight, in N, of an object with a mass...Ch. 1.11 - If the mass of an object is 10 lbm, what is its...Ch. 1.11 - The acceleration of high-speed aircraft is...
Ch. 1.11 - The value of the gravitational acceleration g...Ch. 1.11 - A 3-kg plastic tank that has a volume of 0.2 m3 is...Ch. 1.11 - A 2-kg rock is thrown upward with a force of 200 N...Ch. 1.11 - Solve Prob. 113 using appropriate software. Print...Ch. 1.11 - A 4-kW resistance heater in a water heater runs...Ch. 1.11 - A 150-lbm astronaut took his bathroom scale (a...Ch. 1.11 - The gas tank of a car is filled with a nozzle that...Ch. 1.11 - How would you define a system to determine the...Ch. 1.11 - A large fraction of the thermal energy generated...Ch. 1.11 - A can of soft drink at room temperature is put...Ch. 1.11 - How would you define a system to determine the...Ch. 1.11 - How would you describe the state of the air in the...Ch. 1.11 - What is the difference between intensive and...Ch. 1.11 - The specific weight of a system is defined as the...Ch. 1.11 - Is the number of moles of a substance contained in...Ch. 1.11 - Is the state of the air in an isolated room...Ch. 1.11 - What is a quasi-equilibrium process? What is its...Ch. 1.11 - Define the isothermal, isobaric, and isochoric...Ch. 1.11 - What is specific gravity? How is it related to...Ch. 1.11 - What are the ordinary and absolute temperature...Ch. 1.11 - Consider an alcohol and a mercury thermometer that...Ch. 1.11 - Consider two dosed systems A and B. System A...Ch. 1.11 - Consider a system whose temperature is 18C....Ch. 1.11 - Steam enters a heat exchanger at 300 K. What is...Ch. 1.11 - The temperature of a system rises by 130C during a...Ch. 1.11 - The temperature of a system drops by 45F during a...Ch. 1.11 - The temperature of the lubricating oil in an...Ch. 1.11 - Heated air is at 150C. What is the temperature of...Ch. 1.11 - What is the difference between gage pressure and...Ch. 1.11 - Explain why some people experience nose bleeding...Ch. 1.11 - A health magazine reported that physicians...Ch. 1.11 - Someone claims that the absolute pressure in a...Ch. 1.11 - Consider two identical fans, one at sea level and...Ch. 1.11 - The absolute pressure in a compressed air tank is...Ch. 1.11 - A manometer measures a pressure difference as 40...Ch. 1.11 - A vacuum gage connected to a chambee reads 35 kPa...Ch. 1.11 - The maximum safe air pressure of a tire is...Ch. 1.11 - A pressure gage connected to a tank reads 50 psi...Ch. 1.11 - A pressure gage connected to a tank reads 500 kPa...Ch. 1.11 - A 200-pound man has a total foot imprint area of...Ch. 1.11 - The gage pressure in a liquid at a depth of 3 m is...Ch. 1.11 - The absolute pressure in water at a depth of 9 m...Ch. 1.11 - Consider a 1.75-m-tall man standing vertically in...Ch. 1.11 - The barometer of a mountain hiker reads 750 mbars...Ch. 1.11 - The basic barometer can be used to measure the...Ch. 1.11 - A gas is contained in a vertical, frictionless...Ch. 1.11 - Reconsider Prob. 158. Using appropriate software,...Ch. 1.11 - The piston of a vertical piston-cylinder device...Ch. 1.11 - Both a gage and a manometer are attached to a gas...Ch. 1.11 - Reconsider Prob. 161. Using appropriate software,...Ch. 1.11 - A manometer containing oil ( = 850 kg/m3) is...Ch. 1.11 - A manometer is used to measure the air pressure in...Ch. 1.11 - A mercury manometer ( = 13.600 kg/m3) is connected...Ch. 1.11 - Repeat Prob. 165 for a differential mercury height...Ch. 1.11 - The pressure in a natural gas pipeline is measured...Ch. 1.11 - Repeat Prob. 167E by replacing air with oil with a...Ch. 1.11 - Blood pressure is usually measure by wrapping a...Ch. 1.11 - The maximum blood pressure in the upper arm of a...Ch. 1.11 - Consider a U-tube whose arms are open to the...Ch. 1.11 - Consider a double-fluid manometer attached to an...Ch. 1.11 - Calculate the absolute pressure. P1, of the...Ch. 1.11 - Consider the manometer in Fig. 173. If the...Ch. 1.11 - Consider the manometer in Fig. 173. If the...Ch. 1.11 - The hydraulic lift in a car repair shop has an...Ch. 1.11 - Consider the system shown in Fig. 177. If a change...Ch. 1.11 - The gage pressure of the air in the tank shown in...Ch. 1.11 - Repeat Prob. 178 for a gage pressure of 40 kPa.Ch. 1.11 - What is the value of the engineering software...Ch. 1.11 - Determine a positive real root of this equation...Ch. 1.11 - Solve this system of two equations with two...Ch. 1.11 - Solve this system of three equations with three...Ch. 1.11 - Solve this system of three equations with three...Ch. 1.11 - The reactive force developed by a jet engine to...Ch. 1.11 - The reactive force developed by a jet engine to...Ch. 1.11 - A man goes to a traditional market to buy a steak...Ch. 1.11 - What is the weight of a 1-kg substance in N, kN,...Ch. 1.11 - The pressure in a steam boiler is given to be 92...Ch. 1.11 - A hydraulic lift is to be used to lift a 1900-kg...Ch. 1.11 - The average atmosphere pressure on earth is...Ch. 1.11 - Hyperthermia of 5C (i.e., 5C rise above the normal...Ch. 1.11 - The boiling temperature of water decreases by...Ch. 1.11 - A house is losing heat at a rate of 1800 kJ/h per...Ch. 1.11 - The average body temperature of a person rises by...Ch. 1.11 - The average temperature of the atmosphere in the...Ch. 1.11 - A vertical, frictionless pistoncylinder device...Ch. 1.11 - A vertical pistoncylinder device contains a gas at...Ch. 1.11 - The force generated by a spring is given by F =...Ch. 1.11 - An air-conditioning system requires a 35-m-long...Ch. 1.11 - Balloons are often filled with helium gas because...Ch. 1.11 - Reconsider Prob. 1101. Using appropriate software,...Ch. 1.11 - Determine the maximum amount of load, in kg, the...Ch. 1.11 - The lower half of a 6-m-high cylindrical container...Ch. 1.11 - A pressure cooker cooks a lot faster than an...Ch. 1.11 - The pilot of an airplane reads the altitude 6400 m...Ch. 1.11 - A glass tube is attached to a water pipe, as shown...Ch. 1.11 - Consider a U-tube whose arms are open to the...Ch. 1.11 - A water pipe is connected to a double-U manometer...Ch. 1.11 - A gasoline line is connected to a pressure gage...Ch. 1.11 - Repeat Prob. 1110 for a pressure gage reading of...Ch. 1.11 - When measuring small pressure differences with a...Ch. 1.11 - Pressure transducers are commonly used to measure...Ch. 1.11 - Consider the flow of air through a wind turbine...Ch. 1.11 - The drag force exerted on a car by air depends on...Ch. 1.11 - It is well known that cold air feels much colder...Ch. 1.11 - Reconsider Prob. 1116E. Using appropriate...Ch. 1.11 - During a heating process, the temperature of an...Ch. 1.11 - An apple loses 3.6 kJ of heat as it cools per C...Ch. 1.11 - At sea level, the weight of 1 kg mass in SI units...Ch. 1.11 - Consider a fish swimming 5 m below the free...Ch. 1.11 - The atmospheric pressures at the top and the...Ch. 1.11 - Consider a 2.5-m-deep swimming pool. The pressure...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Select a mechanical component from Part 3 of this book (roller bearings, springs, etc.), go to the Internet, an...
Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
Describe the structural changes that take place when a plain-carbon eutectoid steel is slowly cooled from the a...
Foundations of Materials Science and Engineering
For the beam loading of Figure P334, draw the complete shearing force and bending moment diagrams, and determin...
Machine Elements in Mechanical Design (6th Edition) (What's New in Trades & Technology)
Locate the centroid of the area. Prob. 9-17
INTERNATIONAL EDITION---Engineering Mechanics: Statics, 14th edition (SI unit)
Comprehension Check 7-14
The power absorbed by a resistor can be given by P = I2R, where P is power in units of...
Thinking Like an Engineer: An Active Learning Approach (3rd Edition)
3.3 It is known that a vertical force of 200 lb is required to remove the nail at C from the board. As the nail...
Vector Mechanics for Engineers: Statics
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- 2. Access plates on the industrial holding tank are bolted shut when the tank is filled with vegetable oil. Determine the resultant force that this liquid exerts on plate B, and its location measured from t he bottom of the tank. Use the Geothermal Method. P = 932 kg/ m^3 (Hibbeler, 2015). 4 m 4 m ,1.5 m 2.5 m 5 m 2 marrow_forwardA vertical frictionless piston cylinder contains air at a pressure of 300 KPa with atmospheric pressure of 100 KPa. The diameter of the piston is 0.25m, and g = 9.8m/s2. Determine the piston’s mass.arrow_forwardA 10-m high cylindrical container with a radius of 2 m is filled with oil and water. If the lower 2.5-m of the tank is water with a density of ρ = 1000 kg/m3 while the rest of the tank is filled with oil with a density of ρ = 800 kg/m3, determine the pressure difference, in kPa, between the top and bottom of the cylinder. Assume that the gravity is 9.81 m/s2.arrow_forward
- A solid block is floating on mercury with SG = 13.6. Determine the following if the total volume of the block is 0.02 m^3. Use SG of block = 3.5. Use g = 9.81m/s² and specific weight of water %3D 9.81KN/m3. weight of the block in kN; percentage of the total volume of the block exposed above the liquid surface; and the additional vertical force (kN) required to fully submerge the block. Note: Do not include units in your answers. Do not round off intermediate values and answer in four decimal places.arrow_forwardFresh and seawater flowing in parallel horizontal pipelines are connected to each other by a double U-tube manometer. Determine the pressure difference between the two pipelines (P₁-P2). Take the density of seawater at that location to be psea = 1035 kg/m³. The specific gravities of mercury, water and air are 13.6, 1.0 and 0.0013, respectively.arrow_forwardA 1.2-m-diameter, 3-m-high sealed vertical cylinder is completely filled with gasoline whose density is 740 kg/m3. The tank is now rotated about its vertical axis at a rate of 70 rpm. Determine (a) the difference between the pressures at the centers of the bottom and top surfaces and (b) the difference between the pressures at the center and the edge of the bottom surface.arrow_forward
- A 5 kg object with rectangular cross-section is placed on a circular plate. Radius of the circular plate is 32 cm. Length, width, and height of the object are 305 mm, 125 mm, and 250 mm, respectively. Calculate the pressure (N/m2) developed in the plate at the contact area.arrow_forwardThe maximum blood pressure in the upper arm of a healthy person is about 120 mm Hg. If a vertical tube open to the atmosphere is connected to the vein in the arm of the person, determine how high the blood will rise in the tube. Take the density of the blood to be 1050 kg/m³. Food for thought: How do you experimentally measure blood density?arrow_forwardThe Diameters of a small piston and a large piston of a hydraulic jack are 5 cm ad 10 cm respectively. A force of 80 KN is applied on the small piston. Find the load lifted by the large piston when the pistons are at the same level. small piston is 30 cm above the large piston. The density of the liquid in the jack is given as 1000 kg/m3arrow_forward
- The pressure in a natural gas pipeline is measured by the manometer shown in the figure with one of the arms open to the atmosphere where the local atmospheric pressure is 14 psia. Determine the absolute pressure at the bottom of the natural gas pipeline. Take the density of water to be pw = 62.4 lbm/ft3 Specific gravity of mercury is 13.6, and its density is pHg = 848.6 lbm/ft³ Specific gravity of oil is given to be 0.69, and its density is Poil = 43.1 lbm/ft³. Natural Gas 14 in 6 in Mercury SG = 13.6 -Oil 2 in 22 in Water The absolute pressure at the bottom of the natural gas pipeline is psia. Earrow_forwardA gas is contained in a vertical, frictionless piston cylinder device. The piston has a mass of 2 kg and a crosssectional area of 35 cm2. A compressed spring above the piston exerts a force of 68 N on the piston. If the atmospheric pressure is 90 kPa, determine the pressure inside the cylinder in kPaarrow_forwardConsider a 1.75-m-tall man standing vertically in water and completely submerged in a pool. Determine the difference between the pressures acting at the head and at the toes of the man, in kPa.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
International Edition---engineering Mechanics: St...Mechanical EngineeringISBN:9781305501607Author:Andrew Pytel And Jaan KiusalaasPublisher:CENGAGE L
International Edition---engineering Mechanics: St...
Mechanical Engineering
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:CENGAGE L
Physics 33 - Fluid Statics (1 of 10) Pressure in a Fluid; Author: Michel van Biezen;https://www.youtube.com/watch?v=mzjlAla3H1Q;License: Standard YouTube License, CC-BY