UNIVERSITY PHYSICS UCI PKG
11th Edition
ISBN: 9781323575208
Author: YOUNG
Publisher: PEARSON C
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 12, Problem 12.5DQ
You have probably noticed that the lower the tire pressure, the larger the contact area between the tire and the road. Why?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A lead apron is placed over the dental patient. Why?
When an oil tanker car has arrived at its destination, it prepares to empty its fuel into a reservoir or tank. Part of the preparation involves connecting the body of the tanker car with a metal wire to the ground. Suggest a reason for why is this done.
A bunch of needles fell on a basket of feathers. What is the best method to do to separate the needles from the feathers without hurting yourself? Give a brief and exact explaination.
Chapter 12 Solutions
UNIVERSITY PHYSICS UCI PKG
Ch. 12.1 - Rank the following objects in order from highest...Ch. 12.2 - Mercury is less dense at high temperatures than at...Ch. 12.3 - You place a container of seawater on a scale and...Ch. 12.4 - A maintenance crew is working on a section of a...Ch. 12.5 - Which is the most accurate statement of Bernoullis...Ch. 12.6 - How much more thumb pressure must a nurse use to...Ch. 12 - A cube of oak wood with very smooth faces normally...Ch. 12 - A rubber hose is attached to a funnel, and the...Ch. 12 - Comparing Example 12.1 (Section 12.1) and Example...Ch. 12 - Prob. 12.4DQ
Ch. 12 - You have probably noticed that the lower the tire...Ch. 12 - In hot-air ballooning, a large balloon is filled...Ch. 12 - In describing the size of a large ship, one uses...Ch. 12 - You drop a solid sphere of aluminum in a bucket of...Ch. 12 - A rigid, lighter-than-air dirigible filled with...Ch. 12 - Which has a greater buoyant force on it: a 25-cm3...Ch. 12 - The purity of gold can be tested by weighing it in...Ch. 12 - During the Great Mississippi Flood of 1993, the...Ch. 12 - A cargo ship travels from the Atlantic Ocean (salt...Ch. 12 - You push a piece of wood under the surface of a...Ch. 12 - An old question is Which weighs more, a pound of...Ch. 12 - Suppose the door of a room makes an airtight but...Ch. 12 - At a certain depth in an incompressible liquid,...Ch. 12 - A piece of iron is glued to the top of a block of...Ch. 12 - You take an empty glass jar and push it into a...Ch. 12 - You are floating in a canoe in the middle of a...Ch. 12 - You are floating in a canoe in the middle of a...Ch. 12 - Two identical buckets are filled to the brim with...Ch. 12 - An ice cube floats in a glass of water. When the...Ch. 12 - A helium-filled balloon is tied to a light string...Ch. 12 - If the velocity at each point in space in...Ch. 12 - In a store-window vacuum cleaner display, a...Ch. 12 - A tornado consists of a rapidly whirling air...Ch. 12 - Airports at high elevations have longer runways...Ch. 12 - When a smooth-flowing stream of water comes out of...Ch. 12 - Prob. 12.30DQCh. 12 - Prob. 12.1ECh. 12 - A cube 5.0 cm on each side is made of a metal...Ch. 12 - Prob. 12.3ECh. 12 - Gold Brick. You win the lottery and decide to...Ch. 12 - A uniform lead sphere and a uniform aluminum...Ch. 12 - Prob. 12.6ECh. 12 - A hollow cylindrical copper pipe is 1.50 m long...Ch. 12 - Prob. 12.8ECh. 12 - Prob. 12.9ECh. 12 - BIO (a) Calculate the difference in blood pressure...Ch. 12 - BIO In intravenous feeding, a needle is inserted...Ch. 12 - A barrel contains a 0.120-m layer of oil floating...Ch. 12 - BIO Standing on Your Head. (a) What is the...Ch. 12 - You are designing a diving bell to withstand the...Ch. 12 - BIO Ear Damage from Diving. If the force on the...Ch. 12 - The liquid in the open-tube manometer in Fig....Ch. 12 - BIO There is a maximum depth at which a diver can...Ch. 12 - BIO The lower end of a long plastic straw is...Ch. 12 - An electrical short cuts off all power to a...Ch. 12 - A tall cylinder with a cross-sectional area 12.0...Ch. 12 - A cylindrical disk of wood weighing 45.0 N and...Ch. 12 - A closed container is partially filled with water....Ch. 12 - Hydraulic Lift I. For the hydraulic lift shown in...Ch. 12 - Hydraulic Lift II. The piston of a hydraulic...Ch. 12 - Exploring Venus. The surface pressure on Venus is...Ch. 12 - A rock has mass 1.80 kg. When the rock is...Ch. 12 - A 950-kg cylindrical can buoy floats vertically in...Ch. 12 - A slab of ice floats on a freshwater lake. What...Ch. 12 - An ore sample weighs 17.50 N in air. When the...Ch. 12 - You are preparing some apparatus for a visit to a...Ch. 12 - A rock with density 1200 kg/m3 is suspended from...Ch. 12 - A hollow plastic sphere is held below the surface...Ch. 12 - A cubical block of wood, 10.0 cm on a side, floats...Ch. 12 - A solid aluminum ingot weighs 89 N in air. (a)...Ch. 12 - A rock is suspended by a light string. When the...Ch. 12 - Water runs into a fountain, filling all the pipes,...Ch. 12 - A shower head has 20 circular openings, each with...Ch. 12 - Water is flowing in a pipe with a varying...Ch. 12 - Water is flowing in a pipe with a circular cross...Ch. 12 - Home Repair. You need to extend a...Ch. 12 - A sealed tank containing seawater to a height of...Ch. 12 - Prob. 12.42ECh. 12 - What gauge pressure is required in the city water...Ch. 12 - A small circular hole 6.00 mm in diameter is cut...Ch. 12 - At a certain point in a horizontal pipeline, the...Ch. 12 - At one point in a pipeline the waters speed is...Ch. 12 - A golf course sprinkler system discharges water...Ch. 12 - A soft drink (mostly water) flows in a pipe at a...Ch. 12 - Prob. 12.49ECh. 12 - A pressure difference of 6.00 104 Pa is required...Ch. 12 - In a lecture demonstration, a professor pulls...Ch. 12 - CP The deepest point known in any of the earths...Ch. 12 - CALC A swimming pool is 5.0 m long, 4.0 m wide,...Ch. 12 - BIO Fish Navigation. (a) As you can tell by...Ch. 12 - CP CALC The upper edge of a gate in a dam runs...Ch. 12 - Ballooning on Mars. It has been proposed that we...Ch. 12 - A 0.180-kg cube of ice (frozen water) is floating...Ch. 12 - A narrow. U-shaped glass tube with open ends is...Ch. 12 - A U-shaped tube open to the air at both ends...Ch. 12 - CALC The Great Molasses Flood. On the afternoon of...Ch. 12 - A large, 40.0-kg cubical block of wood with...Ch. 12 - A hot-air balloon has a volume of 2200 m3. The...Ch. 12 - Prob. 12.63PCh. 12 - A single ice cube with mass 16.4 g floats in a...Ch. 12 - Advertisements for a certain small car claim that...Ch. 12 - A piece of wood is 0.600 m long, 0.250 in wide,...Ch. 12 - The densities of air, helium, and hydrogen (at =...Ch. 12 - When an open-faced boat has a mass of 5750 kg,...Ch. 12 - Prob. 12.69PCh. 12 - In seawater, a life preserver with a volume of...Ch. 12 - CALC A closed and elevated vertical cylindrical...Ch. 12 - Prob. 12.72PCh. 12 - A plastic ball has radius 12.0 cm and floats in...Ch. 12 - Assume that crude oil from a supertanker has...Ch. 12 - Prob. 12.75PCh. 12 - A barge is in a rectangular lock on a freshwater...Ch. 12 - CP Water stands at a depth H in a large, open tank...Ch. 12 - Your uncle is in the below-deck galley of his boat...Ch. 12 - Prob. 12.79PCh. 12 - A cylindrical bucket, open at the top, is 25.0 cm...Ch. 12 - Prob. 12.81PCh. 12 - Prob. 12.82PCh. 12 - Two very large open tanks A and F (Fig. P12.83)...Ch. 12 - A liquid flowing from a vertical pipe has a...Ch. 12 - DATA The density values in Table 12.1 are listed...Ch. 12 - DATA You have a bucket containing; in unknown...Ch. 12 - DATA The Environmental Protection Agency is...Ch. 12 - A siphon (Fig. P12.88) is a convenient device for...Ch. 12 - For the situation shown, the tissues in the...Ch. 12 - The maximum force the muscles of the diaphragm can...Ch. 12 - How does the force the diaphragm experiences due...Ch. 12 - If the elephant were to snorkel in salt water,...
Additional Science Textbook Solutions
Find more solutions based on key concepts
(II) Use the scalar product to prove the law of cosines for a triangle:
where a, b, and c are the lengths of ...
Physics for Scientists and Engineers with Modern Physics
The process by which the liquid carbon dioxide is produced.
Physics (5th Edition)
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective
A friend says, “It makes no sense that Anna could turn on lights in her hands simultaneously in her frame but t...
Modern Physics
Write each number in decimal form.
23. 6.31 × 10–4
Applied Physics (11th Edition)
During the brownout, the current in conductors whose resistance is nearly independent of temperature a. decreas...
Essential University Physics (3rd 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
- Review, (a) H it has enough kinetic energy, a molecule at the surface of the Earth can escape the Earths gravitation in the sense that it can continue to move away from the Earth forever as discussed in Section 13.6. Using the principle of conservation of energy, show that the minimum kinetic energy needed for escape is m0gRE where m0 is the mass of the molecule, g is the free-fall acceleration at the surface, and RE is the radius of the Earth, (b) Calculate the temperature for which the minimum escape kinetic energy is ten times the average kinetic energy of an oxygen molecule.arrow_forwardA host pours the remnants of several of wine into a jug a party. The host then inserts a cork with a 2.00-cm diameter into the bottle, placing it in direct contact with the wine. The host is amazed when the host pounds the cork into place and the bottom of the jug (with a 14.0-cm diameter) breaks away. Calculate the extra force exerted against the bottom if he pounded the cork with a 120-N force.arrow_forwardYou are applying for a position with a sea rescue unit and are taking the qualifying exam. One question on the exam is about the use of a diving bell. The diving bell is in the shape of a cylinder with a vertical length of L = 2.50 m. It is closed at the upper circular end and open at the lower circular end. The hell is lowered from air into seawater ( = 1.025 g/cm3) and kept in its upright orientation as it is lowered. The air in the bell is initially at temperature Ti = 20.0C. The bell, with two humans inside, is lowered to a depth (measured to the bottom of the bell) of 27.0 fathoms, or h = 49.4 m. At this depth the water temperature is Tf = 4.0C, and the bell is in thermal equilibrium with the water. The exam question asks you to compare two situations: (i) No additional gas is added to the interior of the bell as it is submerged. Therefore, water enters the open bottom of the bell and the volume of the enclosed air decreases. (ii) The bell is fitted with pressurized air tanks, which deliver high-pressure air into the interior of the bell to keep the level of water at the bottom edge of the bell. This choice requires money and effort to attach the tanks. The exam question asks: Which scenario is better?arrow_forward
- Review. In a water pistol, a piston drives water through a large tube of area A1 into a smaller tube of area A2 as shown in Figure P14.46. The radius of the large tube is 1.00 cm and that of the small tube is 1.00 mm. The smaller tube is 3.00 cm above the larger tube. (a) If the pistol is fired horizontally at a height of 1.50 m, determine the time interval required for the water to travel from the nozzle to the ground. Neglect air resistance and assume atmospheric pressure is 1.00 atm. (b) If the desired range of the stream is 8.00 m, with what speed v2 must the stream leave the nozzle? (c) At what speed v1 must the plunger be moved to achieve the desired range? (d) What is the pressure at the nozzle? (e) Find the pressure needed in the larger tube. (f) Calculate the force that must be exerted on the trigger to achieve the desired range. (The force that must be exerted is due to pressure over and above atmospheric pressure.) Figure P14.46arrow_forwardAn airplane has a mass M, and the two wings have a total area A. During level flight, the pressure on the lower wing surface is P1. Determine the pressure P2 on the upper wing surface.arrow_forwardA certain hydraulic system is designed to exert a force 100 times as large as the one put into it. (a) What must be the ratio of the area of the slave cylinder to the area of the master cylinder? (b) What must be the ratio of their diameters? (c) By what factor is the distance through which the output force moves reduced relative to the distance through which the input force moves? Assume no losses to friction.arrow_forward
- The 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_forwardA garden hose with a diameter of 2.0 cm is used to fill a bucket, which has a volume of 0.10 cubic meters. It takes 1.2 minutes to fill. An adjustable nozzle is attached to the hose to decrease the diameter of the opening, which increases the speed of the water. The hose is held level to the ground at a height of 1.0 meters and the diameter is decreased until a flower bed 3.0 meters away is reached. (a) What is the volume flow rate of the through the nozzle when the diameter 2.0 cm? (b) What does is the speed of coming out of the hose? (c) What does the speed of the water coming out of the hose need to be to reach the flower bed 3.0 meters away? (d) What is be diameter of nozzle needed to reach be flower bed?arrow_forwardWhich of these has maximum torque? The angle between the applied force and moment arm is 30 degrees The force and the moment arm are perpendicular The force applied directed on the pivot point O The force and the moment arm are parallel input force is used to exert a large output force by making the area of the output piston larger than the area of the input piston. O Zero O Wide O Large O Smallarrow_forward
- The antiseptics used for cuts and wounds in human flesh have low surface tension. Explain.arrow_forwardq7arrow_forwardThe owner of a company that manufactures drinking cups decides it would be impressive to build an inground swimming pool that is a scaled up version of her best selling cup. For this particular cup, the area of the circular opening at the top is 1.24 times the area of the circular bottom. Her pool contractor informs her that when the pool is full of water, the magnitude of the force acting on the top surface will be the same as the magnitude of the force acting on the bottom surface. Determine the depth of the pool. marrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
Static Equilibrium: concept; Author: Jennifer Cash;https://www.youtube.com/watch?v=0BIgFKVnlBU;License: Standard YouTube License, CC-BY