College Physics: A Strategic Approach (3rd Edition)
3rd Edition
ISBN: 9780321879721
Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher: PEARSON
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Chapter 13, Problem 48GP
A friend asks you how much pressure is in your car tires. You know that the tire manufacturer recommends 30 psi, but it’s been a while since you’ve checked. You can’t find a tire gauge in the car, but you do find the owner’s manual and a ruler. Fortunately, you’ve just finished taking physics, so you tell your friend, “I don’t know, but I can figure it out.” From the owner’s manual you find that the car’s mass is 1500 kg. It seems reasonable to assume that each tire supports one-fourth of the weight. With the ruler you find that the tires are 15 cm wide and the flattened segment of the tire in contact with the road is 13 cm long. What answer will you give your friend?
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Tire gauges for air pressure, as well as most other gauges used in an industrial environment take into account the pressure due to the atmosphere of the Earth. That's why your car gauge reads 0 before you put it on your tire to check your pressure. This is called gauge pressure.
The real pressure within a tire or other object containing pressurized stuff would be a combination of what the gauge reads as well at the atmospheric pressure. If a gauge on a tire reads 10.42 psi, what is the real pressure in the tire in pascals? The atmospheric pressure is 1.01x105 Pa.
Tire gauges for air pressure, as well as most other gauges used in an industrial environment take into account the pressure due to the atmosphere of earth. That's why your car gauge reads 0 before you put it on your tire to check your pressure. That is called gauge pressure. The real pressure within a tire or other object contains pressurized stuff would be a combination of what the gauge reads as well at the atmospheric pressure. If a gauge on a tire reads 40.16 psi, what is the real pressure in the tire in pascals. The atmospheric pressure is 1.01x10^5 Pa.
A pressure gauge on an air cylinder reads 8 atm. What is the absolute pressure (in atm) inside the cylinder ?
Chapter 13 Solutions
College Physics: A Strategic Approach (3rd Edition)
Ch. 13 - Which has the greater density, 1 g of mercury or...Ch. 13 - Prob. 2CQCh. 13 - You are given an irregularly shaped chunk of...Ch. 13 - Prob. 4CQCh. 13 - Prob. 5CQCh. 13 - Prob. 6CQCh. 13 - Rank in order, from largest to smallest, the...Ch. 13 - Prob. 8CQCh. 13 - A steel cylinder at sea level contains air at a...Ch. 13 - In Figure Q.13.10, A and B are rectangular tanks...
Ch. 13 - Imagine a square column of the atmosphere, 1 m on...Ch. 13 - Prob. 12CQCh. 13 - In Figure Q.13.13, is pA larger, smaller, or equal...Ch. 13 - A beaker of water rests on a scale. A metal ball...Ch. 13 - Rank in order, from largest to smallest, the...Ch. 13 - Objects A, B, and C in Figure Q.13.16 have the...Ch. 13 - Refer to Figure Q.13.16. Now A, B, and C have the...Ch. 13 - A heavy lead block and a light aluminum block of...Ch. 13 - When you stand on a bathroom scale, it reads 700...Ch. 13 - Suppose you stand on a bathroom scale that is on...Ch. 13 - When you place an egg in water, it sinks. If you...Ch. 13 - The water of the Dead Sea is extremely salty,...Ch. 13 - Fish can adjust their buoyancy with an organ...Ch. 13 - Figure Q.13.24 shows two identical beakers filled...Ch. 13 - A tub of water, filled to the brim, sits on a...Ch. 13 - Ships A and B have the same height and the same...Ch. 13 - Gas flows through a pipe, as shown in Figure...Ch. 13 - Prob. 28CQCh. 13 - Prob. 29CQCh. 13 - Is it possible for a fluid in a tube to flow in...Ch. 13 - Prob. 31CQCh. 13 - Two pipes have the same inner cross-section area....Ch. 13 - Figure Q.13.33 shows a 100 g block of copper ( =...Ch. 13 - Masses A and B rest on very light pistons that...Ch. 13 - Prob. 35MCQCh. 13 - Prob. 36MCQCh. 13 - A large beaker of water is filled to its rim with...Ch. 13 - An object floats in water, with 75% of its volume...Ch. 13 - A syringe is being used to squirt water as shown...Ch. 13 - Water flows through a 4.0-cm-diameter horizontal...Ch. 13 - A 15-m-long garden hose has an inner diameter of...Ch. 13 - Prob. 1PCh. 13 - A standard gold bar stored at Fort Knox, Kentucky,...Ch. 13 - Prob. 3PCh. 13 - Air enclosed in a cylinder has density = 1.4...Ch. 13 - Prob. 5PCh. 13 - Ethyl alcohol has been added to 200 mL of water in...Ch. 13 - The average density of the body of a fish is 1080...Ch. 13 - Prob. 8PCh. 13 - A tall cylinder contains 25 cm of water. Oil is...Ch. 13 - Prob. 10PCh. 13 - A 35-cm-tall, 5.0-cm-diameter cylindrical beaker...Ch. 13 - The gauge pressure at the bottom of a cylinder of...Ch. 13 - A research submarine has a 20-cm-diameter window...Ch. 13 - The highest that George can suck water up a very...Ch. 13 - Prob. 15PCh. 13 - Prob. 16PCh. 13 - Prob. 17PCh. 13 - Glycerin is poured into an open U-shaped tube...Ch. 13 - A U-shaped tube, open to the air on both ends,...Ch. 13 - What is the height of a water barometer at...Ch. 13 - Postural hypotension is the occurrence of low...Ch. 13 - A 6.00-cm-diameter sphere with a mass of 89.3 g is...Ch. 13 - A cargo barge is loaded in a saltwater harbor for...Ch. 13 - A 10 cm 10 cm 10 cm wood block with a density of...Ch. 13 - What is the tension in the string in Figure...Ch. 13 - What is the tension in the string in Figure...Ch. 13 - A 10 cm 10 cm 10 cm block of steel steel = 7900...Ch. 13 - To determine an athletes body fat, she is weighed...Ch. 13 - Styrofoam has a density of 32 kg/m3. What is the...Ch. 13 - Calculate the buoyant force due to the surrounding...Ch. 13 - River Pascal with a volume flow rate of 5.0 105...Ch. 13 - Water flowing through a 2.0-cm-diameter pipe can...Ch. 13 - Prob. 33PCh. 13 - Prob. 34PCh. 13 - What does the top pressure gauge in Figure P.13.35...Ch. 13 - Prob. 36PCh. 13 - Prob. 37PCh. 13 - What pressure difference is required between the...Ch. 13 - Water flows at 0.25 L/s through a 10-m-long garden...Ch. 13 - Prob. 40PCh. 13 - The density of gold is 19,300 kg/m3. 197 g of gold...Ch. 13 - As discussed in Section 13.3, a persons percentage...Ch. 13 - The density of aluminum is 2700 kg/m3. How many...Ch. 13 - A 50-cm-thick layer of oil floats on a...Ch. 13 - An oil layer floats on 85 cm of water in a tank....Ch. 13 - The little Dutch boy saved Holland by sticking his...Ch. 13 - Prob. 47GPCh. 13 - A friend asks you how much pressure is in your car...Ch. 13 - Prob. 49GPCh. 13 - A 6.0-cm-tall cylinder floats in water with its...Ch. 13 - A sphere completely submerged in water is tethered...Ch. 13 - Prob. 52GPCh. 13 - A 5.0 kg rock whose density is 4800 kg/m3 is...Ch. 13 - A flat slab of styrofoam, with a density of 32...Ch. 13 - A 2.0 mL syringe has an inner diameter of 6.0 mm,...Ch. 13 - Prob. 56GPCh. 13 - The leaves of a tree lose water to the atmosphere...Ch. 13 - II A hurricane wind blows across a 6.00 m 5.0 m...Ch. 13 - Prob. 59GPCh. 13 - Prob. 60GPCh. 13 - Air at 20C flows through the tube shown in Figure...Ch. 13 - Air at 20C flows through the tube shown in Figure...Ch. 13 - Water flows at 5.0 L/s through a horizontal pipe...Ch. 13 - Prob. 64GPCh. 13 - Prob. 65GPCh. 13 - Smoking tobacco is bad for your circulatory...Ch. 13 - A stiff, 10-cm-long tube with an inner diameter of...Ch. 13 - Prob. 68MSPPCh. 13 - Because the flow speed in your capillaries is much...Ch. 13 - Suppose that in response to some stimulus a small...Ch. 13 - Prob. 71MSPP
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