![Physics (5th Edition)](https://www.bartleby.com/isbn_cover_images/9780321976444/9780321976444_largeCoverImage.gif)
Physics (5th Edition)
5th Edition
ISBN: 9780321976444
Author: James S. Walker
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 15, Problem 1PCE
To determine
The weight of the air in your physics classroom.
Expert Solution & Answer
![Check Mark](/static/check-mark.png)
Want to see the full answer?
Check out a sample textbook solution![Blurred answer](/static/blurred-answer.jpg)
Students have asked these similar questions
Air (1.2 kg/m3) passes through the Venturi tube, and the heavier liquid in the U-shaped part is water (1000 kg/m3).The Venturi tube is made of 1-inch and 1⁄2-inch PVC pipe, with inside diameters of 1.049 and 0.622 inches, respectively. What is the speed of the air passing through the wide (larger diameter) part of the Venturi tube?
(Take the height difference value h = 6 inches)
Would the mass of air in the room be lower or higher if the tables, equipment etc. in the room were considered? Explain your reasoning.
A 19 cmcm radius air duct is used to replenish the air of a room 7.6m×6.7m×3.8m every 15 min.
How fast does air flow in the duct?
Chapter 15 Solutions
Physics (5th Edition)
Ch. 15.1 - Prob. 1EYUCh. 15.2 - A force F acts on a circular area of radius r....Ch. 15.3 - Is the increase in pressure from the surface of...Ch. 15.4 - Is the buoyant force exerted on a cubical block of...Ch. 15.5 - A cup is filled to the brim with water. Floating...Ch. 15.6 - Water flows with a speed V through a pipe. If the...Ch. 15.7 - Water flows through a pipe with a varying...Ch. 15.8 - Prob. 8EYUCh. 15.9 - Which pipe requires a greater pressure difference...Ch. 15 - Suppose you drink a liquid through a straw....
Ch. 15 - Considering your answer to the previous question,...Ch. 15 - Prob. 3CQCh. 15 - What holds a suction cup in place?Ch. 15 - Suppose a force of 400 N is required to push the...Ch. 15 - Why is it more practical to use mercury in the...Ch. 15 - An objects density can be determined by first...Ch. 15 - How does a balloonist control the vertical motion...Ch. 15 - Why is it possible for people to float without...Ch. 15 - Prob. 10CQCh. 15 - One day, while snorkeling near the surface of a...Ch. 15 - Since metal is more dense than water, how is it...Ch. 15 - A sheet of water passing over a waterfall is...Ch. 15 - It is a common observation that smoke rises more...Ch. 15 - Prob. 15CQCh. 15 - If you have a hair dryer and a Ping Pong ball at...Ch. 15 - Prob. 1PCECh. 15 - What weight of water is required to fill a...Ch. 15 - You buy a gold ring at a pawn shop. The ring has a...Ch. 15 - A cube of metal has a mass of 0.347 kg and...Ch. 15 - What is the downward force exerted by the...Ch. 15 - Prob. 6PCECh. 15 - A 71-kg person sits on a 3.9-kg chair. Each leg of...Ch. 15 - To prevent damage to floors (and to increase...Ch. 15 - Suppose that when you ride on your 7.85-kg bike...Ch. 15 - Shock Wave Pressure On February 15, 2013, a...Ch. 15 - Predict/Calculate The weight of your 1420-kg car...Ch. 15 - Two drinking glasses, 1 and 2, are filled with...Ch. 15 - Figure 15-39 shows four containers, each filled...Ch. 15 - Water in the lake behind Hoover Dam is 221 m deep....Ch. 15 - In a classroom demonstration, the pressure inside...Ch. 15 - As a storm front moves in, you notice that the...Ch. 15 - Prob. 17PCECh. 15 - A circular wine barrel 75 cm in diameter will...Ch. 15 - A cylindrical container with a cross-sectional...Ch. 15 - Prob. 20PCECh. 15 - Predict/Calculate A water storage tower is filled...Ch. 15 - Predict/Calculate You step into an elevator...Ch. 15 - Suppose you pour water into a container until it...Ch. 15 - Referring to Example 15-8, suppose that some...Ch. 15 - Prob. 25PCECh. 15 - BIO Predict/Calculate The patient in Figure 15-41...Ch. 15 - A cylindrical container 1.0 m tall contains...Ch. 15 - Prob. 28PCECh. 15 - Lead is more dense than aluminum. (a) Is the...Ch. 15 - A fish adjusts its buoyancy to hover in one place...Ch. 15 - A raft is 3.7 m wide and 6.1 m long. When a horse...Ch. 15 - Prob. 32PCECh. 15 - Prob. 33PCECh. 15 - A 3.2-kg balloon is filled with helium (density =...Ch. 15 - A hot-air balloon plus cargo has a mass of 312 kg...Ch. 15 - In the lab you place a beaker that is half full of...Ch. 15 - Predict/Explain A block of wood has a steel ball...Ch. 15 - Predict/Explain In the preceding problem, suppose...Ch. 15 - Measuring Density with a Hydrometer A hydrometer,...Ch. 15 - Predict/Explain Referring to Example 15-12,...Ch. 15 - On a planet in a different solar system the...Ch. 15 - An air mattress is 2.3 m long, 0.66 m wide, and 14...Ch. 15 - A solid block is attached to a spring scale. When...Ch. 15 - Prob. 44PCECh. 15 - BIO A person weighs 756 N in air and has a...Ch. 15 - Predict/Calculate A log floats in a river with...Ch. 15 - A person with a mass of 78 kg and a volume of...Ch. 15 - Predict/Calculate A block of wood floats on water....Ch. 15 - A piece of lead has the shape of a hockey puck,...Ch. 15 - Predict/Calculate A lead weight with a volume of...Ch. 15 - To water the yard, you use a hose with a diameter...Ch. 15 - Water flows through a pipe with a speed of 2.4...Ch. 15 - To fill a childs inflatable wading pool, you use a...Ch. 15 - Prob. 54PCECh. 15 - Prob. 55PCECh. 15 - Prob. 56PCECh. 15 - A river narrows at a rapids from a width of 12 m...Ch. 15 - Prob. 58PCECh. 15 - BIO Plaque in an Artery The buildup of plaque on...Ch. 15 - A horizontal pipe contains water at a pressure of...Ch. 15 - Unfiltered olive oil must flow at a minimum speed...Ch. 15 - Prob. 62PCECh. 15 - Predict/Calculate Water flows through a horizontal...Ch. 15 - A garden hose is attached to a water faucet on one...Ch. 15 - A water tank springs a leak. Find the speed of...Ch. 15 - (a) Find the pressure difference on an airplane...Ch. 15 - On a vacation flight, you look out the window of...Ch. 15 - Prob. 68PCECh. 15 - Predict/Calculate During a thunderstorm, winds...Ch. 15 - A garden hose with a diameter of 1.6 cm has water...Ch. 15 - Prob. 71PCECh. 15 - BIO Vasodilation When the body requires an...Ch. 15 - BIO (a) Find the volume of blood that flows per...Ch. 15 - BIO An Occlusion in an Artery Suppose an occlusion...Ch. 15 - Motor Oil The viscosity of 5W-30 motor oil changes...Ch. 15 - Prob. 76PCECh. 15 - Prob. 77GPCh. 15 - CE Predict/Explain A person floats in a boat in a...Ch. 15 - CE A person floats in a boat in a small backyard...Ch. 15 - CE The three identical containers in Figure 15-46...Ch. 15 - Prob. 81GPCh. 15 - A water main broke on Lake Shore Drive in Chicago...Ch. 15 - Prob. 83GPCh. 15 - BIO Power Output of the Heart The power output of...Ch. 15 - A solid block is suspended from a spring scale....Ch. 15 - A wooden block with a density of 710 kg/m3 and a...Ch. 15 - Predict/Calculate Floating a Ball and Block A...Ch. 15 - The Depth of the Atmosphere Evangelista Torricelli...Ch. 15 - The Hydrostatic Paradox I Consider the lightweight...Ch. 15 - The Hydrostatic Paradox II Consider the two...Ch. 15 - Predict/Calculate A backyard swimming pool is...Ch. 15 - A prospector finds a solid rock composed of...Ch. 15 - Predict/Calculate (a) If the tension in the string...Ch. 15 - Prob. 94GPCh. 15 - Prob. 95GPCh. 15 - Prob. 96GPCh. 15 - BIO A person weighs 685 N in air but only 497 N...Ch. 15 - Thunderstorm Outflow Rain-cooled air near the core...Ch. 15 - A horizontal pipe carries oil whose coefficient of...Ch. 15 - BIO A patient is given an injection with a...Ch. 15 - Going Over Like a Mythbuster Lead Balloon On one...Ch. 15 - A round wooden log with a diameter of 73 cm floats...Ch. 15 - Figure 15-52 Problem 103 103. The hollow,...Ch. 15 - A geode is a hollow rock with a solid shell and an...Ch. 15 - A tank of water filled to a depth d has a hole in...Ch. 15 - The water tank in Figure 15-53 is open to the...Ch. 15 - Prob. 107PPCh. 15 - Prob. 108PPCh. 15 - Doughnuts are cooked by dropping the dough into...Ch. 15 - Prob. 110PPCh. 15 - Predict/Calculate Referring to Example 15-8...Ch. 15 - Referring to Example 15-8 Find the height...Ch. 15 - Referring to Example 15-24 (a) Find the height H...Ch. 15 - Prob. 116PP
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
- What is the ratio of the average distances that oxygen will diffuse in a given time in air and water? Why is this distance less in water (equivalently, why is D less in water)?arrow_forwardHow many cubic meters of helium are required to lift a light balloon with a 400-kg payload to a height of 8 000 m? Take Hc = 0.179 kg/m3. Assume the balloon maintains a constant volume and the density of air decreases with the altitude z according to the expression pair = 0e-z/8 000, where z is in meters and 0 = 1.20 kg/m3 is the density of air at sea level.arrow_forwardSmall spheres of diameter 1.00 mm fall through 20C water with a terminal speed of 1.10 cm/s. Calculate the density of the spheres.arrow_forward
- (a) How high will water rise in a glass capillary tube with a 0.500-mm radius? (b) How much gravitational potential energy does the water gain? (c) Discuss possible sources of this energy.arrow_forwardA backyard swimming pool with a circular base of diameter 6.00 m is filled to depth 1.50 m. (a) Find the absolute pressure at the bottom of the pool. (b) Two persons with combined mass 150 kg enter the pool and float quietly there. No water overflows. Find the pressure increase at the bottom of the pool after they enter the pool and float.arrow_forwardAn airplane is cruising at altitude 10 km. The pressure outside the craft is 0.287 atm; within the passenger compartment, the pressure is 1.00 atm and the temperature is 20C. A small leak occurs in one of the window seals in the passenger compartment. Model the air as an ideal fluid to estimate the speed of the airstream flowing through the leak.arrow_forward
- How many cubic meters of helium are required to lift a balloon with a 400-kg payload to a height of 8 000 m? Take He = 0.179 kg/m3. Assume the balloon maintains a constant volume and the density of air decreases with the altitude z according to the expression air = 0ez/8, where z is in meters and 0 = 1.20 kg/m3 is the density of air at sea level.arrow_forwardThe human brain and spinal cord are immersed in the cerebrospinal fluid. The fluid is normally continuous between the cranial and spinal cavities and exerts a pressure of 100 to 200 mm of H2O above the prevailing atmospheric pressure. In medical work, pressures are often measured in units of mm of H2O because body fluids, including the cerebrospinal fluid, typically have nearly the same density as water. The pressure of the cerebrospinal fluid can be measured by means of a spinal tap. A hollow tube is inserted into the spinal column, and the height lo which the fluid rises is observed, as shown in Figure P9.83. If the fluid ruses to a height of 160. mm, we write its gauge pressure as 160. mm H2O. (a) Express this pressure in pascals, in atmospheres, and in millimeters of mercury. (b) Sometimes it is necessary to determine whether an accident victim has suffered a crushed vertebra that is blocking the flow of cerebrospinal fluid in the spinal column. In other cases, a physician may suspect that a tumor or other growth is blocking the spinal column and inhibiting the flow of cerebrospinal fluid. Such conditions ran be investigated by means of the Queckensted test. In this procedure, the veins in the patients neck are compressed lo make the blood pressure rise in the brain. The increase in pressure in the blood vessels is transmitted to the cerebrospinal fluid. What should be the normal effect on the height of the fluid in the spinal tap? (c) Suppose compressing the veins had no effect on the level of the fluid. What might account for this phenomenon?arrow_forwardWater flows through a fire hose of diameter 6.35 cm at a rate of 0.0120 m3/s. The fire hose ends in a nozzle of inner diameter 2.20 cm. What is the speed with which the water exits the nozzle?arrow_forward
- (a) A 75.0-kg man floats in freshwater with 3.00% of his volume above water when his lungs are empty, and 5.00% of his volume above water when his lungs are full. Calculate the volume of air he inhales—called his lung capacity—in liters. (b) Does this lung volume seem reasonable?arrow_forwardAn airplane is cruising al altitude 10 km. The pressure outside the craft is 0.287 atm; within the passenger compartment, the pressure is 1.00 atm and the temperature is 20C. A small leak occurs in one of the window seals in the passenger compartment. Model the air as an ideal fluid to estimate the speed of the airstream flowing through the leak.arrow_forwardA vertical cylinder of cross-sectional area A is fitted with a tight-fitting, frictionless piston of mass m (Fig. P18.40). The piston is not restricted in its motion in any way and is supported by the gas at pressure P below it. Atmospheric pressure is P0. We wish to find the height h in Figure P18.40. (a) What analysis model is appropriate to describe the piston? (b) Write an appropriate force equation for the piston from this analysis model in terms of P, P0, m, A, and g. (c) Suppose n moles of an ideal gas are in the cylinder at a temperature of T. Substitute for P in your answer to part (b) to find the height h of the piston above the bottom of the cylinder. Figure P18.40arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningCollege PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
- College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax CollegePrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781133939146/9781133939146_smallCoverImage.gif)
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781285737027/9781285737027_smallCoverImage.gif)
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305952300/9781305952300_smallCoverImage.gif)
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781938168000/9781938168000_smallCoverImage.gif)
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
![Text book image](https://www.bartleby.com/isbn_cover_images/9781133104261/9781133104261_smallCoverImage.gif)
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781337553278/9781337553278_smallCoverImage.gif)
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning