University Physics Volume 1
18th Edition
ISBN: 9781938168277
Author: William Moebs, Samuel J. Ling, Jeff Sanny
Publisher: OpenStax - Rice University
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 14, Problem 130CP
During a marathon race, a runner's blood flow increases to 10.0 times her resting rate. Her blood's viscosity dropped to 95.0% of its normal value, and the blood pressure difference across the circulatory system has increased by 50.0%. By what factor bas be average radii of her blood vessels increased?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
The human circulation system has approximately 1X109 capillary vessels. Each vessel hasa diameter of about 8μm. Assuming cardiac output is 5L/min, determine the averagevelocity of blood flow through each capillary vessel.
(a) As blood passes through the capillary bed in an organ, the capillaries join to form
venules (small veins). If the blood speed increases by a factor of 4.00 and the total cross-sectional area of the venules is 9.5 cm2, what is the total cross-sectional area of the capillaries
feeding these venules? (b) How many capillaries are involved if their average diameter is20.0 μm?
The approximate diameter of the aorta is 0.50 cm; that of a capillary is 10 μm. The approximate average blood flow speed is 1.0 m/s in the aorta and 1.0 cm/s in the capillaries. If all the blood in the aorta eventually flows through the capillaries, estimate the number of capillaries in the circulatory system.
Chapter 14 Solutions
University Physics Volume 1
Ch. 14 - Check Your Understanding If the reservoir in...Ch. 14 - Check Your Understanding Mercury is a hazardous...Ch. 14 - Check Your Understanding Would a hydraulic press...Ch. 14 - Which of the following substances are fluids at...Ch. 14 - Why are gases easier to compress tan liquids and...Ch. 14 - Explain how the density of air varies with...Ch. 14 - The images show a glass of ice water filled to the...Ch. 14 - How is pressure related to sharpness of a knife...Ch. 14 - Why is a force exerted by a static fluid on a...Ch. 14 - Imagine a remote location near the Nott Pole, a...
Ch. 14 - In ballet, dancing en pointe (on the tips of the...Ch. 14 - Atmospheric pressure exerts a large force (equal...Ch. 14 - Why does atmospheric pressure decrease more...Ch. 14 - The image shows how sandbags placed around a leak...Ch. 14 - Is there a net force on a dam due to atmospheric...Ch. 14 - Does atmospheric pressure add to the gas pressure...Ch. 14 - You can break a strong wine bottle by pounding a...Ch. 14 - Explain why the fluid reaches equal levels on...Ch. 14 - Suppose the master cylinder in a hydraulic system...Ch. 14 - More force is required to pull the plug in a full...Ch. 14 - Do fluids exert buoyant forces in a “weightless"...Ch. 14 - Will the same ship float higher in salt water than...Ch. 14 - Marbles dropped into a partially filled bathtub...Ch. 14 - Mary figures in the show streamlines. Explain why...Ch. 14 - You can squirt water from a garden hose a...Ch. 14 - Water is shot nearly vertically upward in a...Ch. 14 - Look back to figure 14.29. Answer the following...Ch. 14 - A tube with a narrow segment designed to enhance...Ch. 14 - Some chimney pipes have a T-shape, with a...Ch. 14 - Is there a limit to the height to which an...Ch. 14 - Why is it preferable for airplanes to take off...Ch. 14 - Roofs are sometimes pushed off vertically a...Ch. 14 - It is dangerous to stud close to railroad tracks...Ch. 14 - Water pressure inside a hose nozzle can be less...Ch. 14 - David rolled down the window on his car while...Ch. 14 - Based on Bernoulli’s equation, what are three...Ch. 14 - The old rubber boot below has leaks. To what...Ch. 14 - Water pressure inside a hose nozzle can be less...Ch. 14 - Explain why the viscosity of a liquid decreases...Ch. 14 - When paddling a canoe upstream, it is wisest to...Ch. 14 - Plumbing usually includes air-filled tubes tear...Ch. 14 - Doppler ultrasound can be used to measure the...Ch. 14 - Sink drains often have a device such as that shown...Ch. 14 - Gold is sold by the troy ounce (31.103 g). What is...Ch. 14 - Mercury is commonly supplied in flasks containing...Ch. 14 - What is the mass deep breath of air having a...Ch. 14 - A straightforward method of finding the density of...Ch. 14 - Suppose you have a coffee with a circular...Ch. 14 - A rectangular gasoline tank bold 30.0 kg of...Ch. 14 - A trash compactor can compress its contents to...Ch. 14 - A 2.50-kg steel gasoline can holds 20.0 L of...Ch. 14 - What is the density of 18.0-karat gold that is a...Ch. 14 - The tip of a nail exerts tremendous pressure when...Ch. 14 - A glass tube mercury. What would be the height of...Ch. 14 - The greatest ocean depths on Earth are found in...Ch. 14 - Verigy that the SI of hpg is N/m2.Ch. 14 - What pressure is exerted the bottom of a gas tank...Ch. 14 - A dam is used to hold back a river. The dam has a...Ch. 14 - Find ae gauge and absolute pressures in be balloon...Ch. 14 - How tall must be to measure blood pressure as high...Ch. 14 - Assuming bicycle tires are perfectly flexible and...Ch. 14 - Pascal’s Principle and Hydraulics 59. How much...Ch. 14 - What force must exerted on the master cylinder of...Ch. 14 - A host pours the remnants of several of wine into...Ch. 14 - A certain hydraulic system is designed to exert a...Ch. 14 - Verify that work input equals work output for a...Ch. 14 - What fraction of ice is submerged when it floats...Ch. 14 - If a person's body has a density of 995 kg/m3,...Ch. 14 - A rock with a mass of 540 g in air is found to...Ch. 14 - Archimedes' principle can be used to calculate the...Ch. 14 - Calculate the buoyant force a 200-L helium...Ch. 14 - What is density of a woman floats in fresh water...Ch. 14 - A man has a mass of 80 kg and a density of...Ch. 14 - A simple compass cute made by placing a small bar...Ch. 14 - What percentage of an iron anchor’s weight will be...Ch. 14 - Referring to Figure 14.20, prove that the buoyant...Ch. 14 - A 75.0-kg floats in freshwater 3.00% of his volume...Ch. 14 - What is the average flow rate in cm3/s of gasoline...Ch. 14 - The heart of a resting adult pumps blood at a rate...Ch. 14 - The Huka Falls on the Waikato River is one of New...Ch. 14 - (a) Estimate the time it would take to a private...Ch. 14 - What is the fluid speed a hose a 9.00-cm diameter...Ch. 14 - Water is moving at a velocity of 2.00 m/s through...Ch. 14 - Prove the sped of an incompressible fluid through...Ch. 14 - Water emerges straight down from a faucet with a...Ch. 14 - Verify that pressure has units of enery per unit...Ch. 14 - Suppose you have a wind speed gauge like the pitot...Ch. 14 - If be pressure reading of your pitot tube is 15.0...Ch. 14 - Every few years, winds in Boulder, Colorado,...Ch. 14 - What is the pressure drop due to the Bernoulli...Ch. 14 - (a) Using Bernoulli's equation, show that be...Ch. 14 - A container of water has a cross-sectional area of...Ch. 14 - A fluid of a constant density flows through a...Ch. 14 - (a) Calculate the retarding force due to viscosity...Ch. 14 - The arterioles (small arteries) leading to organ...Ch. 14 - A spherical particle falling at a terminal speed...Ch. 14 - Using the equation of the previous problem, find...Ch. 14 - A skydiver will reach a terminal velocity when the...Ch. 14 - (a) Verify that a 19.0% decrease in laminar flow...Ch. 14 - When physicians diagnose arterial blockages, they...Ch. 14 - An oil gusher shoots crude 25.0 m the through a...Ch. 14 - Concrete is pumped from a cement mixer to the...Ch. 14 - Verify that flow of oil is laminar for an oil...Ch. 14 - Calculate Reynolds numbers for flow of trough (a)...Ch. 14 - A fire hose has an inside diameter of 6.40 cm....Ch. 14 - At what rate might turbulence begin to develop in...Ch. 14 - Before digital storage devices, such as the memory...Ch. 14 - Water towers store water above the level of...Ch. 14 - The aqueous humor in a person's eye is exerting a...Ch. 14 - (a) Convert normal blood pressure readings of 120...Ch. 14 - Pressure cookers have been around for more than...Ch. 14 - Bird bones have air pockets to reduce their...Ch. 14 - In an immersion measurement of a woman's density,...Ch. 14 - Some have a density slightly less than that of...Ch. 14 - The human circulation system has approximately...Ch. 14 - The flow of blood through a 2.00106 m -radius...Ch. 14 - The left ventricle of a resting adult's heart...Ch. 14 - A sump pump (used to drain water from be basement...Ch. 14 - A glucose solution being administered with an IV...Ch. 14 - A small artery has a length of 1.1103m and a...Ch. 14 - Angioplasty is a technique in which arteries...Ch. 14 - Suppose a blood vessel's radius is decreased to...Ch. 14 - The pressure dam early in problems section...Ch. 14 - The temperature of atmosphere is not always...Ch. 14 - A submarine is stranded on the bottom of the ocean...Ch. 14 - Logs sometimes float vertically a lake because one...Ch. 14 - Scurrilous con artists have been known to...Ch. 14 - The inside volume of a house is equivalent to that...Ch. 14 - A garden hose with a diameter of 2.0 cm is used to...Ch. 14 - A frequency quoted rule of thumb aircraft design...Ch. 14 - Two pipes of equal and constant diameter leave a...Ch. 14 - Fluid originally flows through a tube at a rate of...Ch. 14 - During a marathon race, a runner's blood flow...Ch. 14 - Water supplied to a house by a water main has a...Ch. 14 - Gasoline is piped underground from refineries to...
Additional Science Textbook Solutions
Find more solutions based on key concepts
The current in the RL circuit shown below reaches half maximum value in l.75 ms after the switch S1is town. Det...
University Physics Volume 2
Q18.30 In addition to the normal cooking directions printed on the back of a box of rice, there are also “high-...
University Physics (14th Edition)
The force, when you push against a wall with your fingers, they bend.
Conceptual Physics (12th Edition)
19. A 72 kg bike racer climbs a 1200-m-long section of road that has a slope of 4.3°. By how much does his grav...
College Physics: A Strategic Approach (3rd Edition)
The consequence of applying the parking brake in a car that is in rapid motion.
Physics (5th Edition)
Knowledge Booster
Similar questions
- Angioplasty is a technique in which arteries partially blocked with plaque are dilated to increase blood flow. By what factor must the radius of an artery be increased in order to increase blood flow by a factor of 10?arrow_forwardThe flow of blood through a 2.00106 m -radius capillary is 3.80109cm3/s . (a) What is the speed of be blood now? (b) Assuming all the blood in the body passes through capillaries, how many of them must there be to carry a total flow of 90.0 cm3/s?arrow_forwardBlood is pumped from the heart at a rate of 5.0 L/min into the aorta (of radius 1.0 cm). Determine the speed of blood through the aorta.arrow_forward
- (a) As blood passes through the capillary bed in an organ, the capillaries join to form venules (small veins). If the blood speed increases by a factor of 4.00 and the total cross-sectional area of the venules is 10.0 cm2, what is the total cross-sectional area of the capillaries feeding these venules? (b) How many capillaries are involved if their average diameter is 10.0 m?arrow_forwardA rock with a mass of 540 g in air is found to have an apparent mass of 342 g when submerged in water. (a) What mass of water is displaced? (b) What is the volume of the rock? (c) What is its average density? Is this consistent with the value for granite?arrow_forwardThe arterioles (small arteries) leading to organ constrict in order to decrease flow to the organ. To down organ, blood is reduced naturally to 1.00% of its original value. By what factor do the radii of the arterioles constrict?arrow_forward
- When physicians diagnose arterial blockages, they quote reduction flow rate. If the flow rate an artery has been reduced to 10.0% of its normal value by a blood clot and be average pressure difference has increased by 20.0%, by what factor has the clot reduced the radius of the artery?arrow_forwardOxygen reaches the veinless cornea of the eye by diffusing through its tear layer, which is 0.500-mm thick. How long does it take the average oxygen molecule to do this?arrow_forwardThe heart of a resting adult pumps blood at a rate of 5.00 L/min. (a) Convert this to cm3/s. (b) What is this rate in M3/s?arrow_forward
- (a) Convert normal blood pressure readings of 120 over 80 mm Hg to newtons per meter squared using be relationship for pressure due to the weight of a fluid (p=hg) rater a conversion factor. (b) Explain why be blood pressure of an infant would likely be smaller than that of an adult. Specifically, consider the smaller height to which blood mast be pumped.arrow_forwardL (a) The heart pumps blood into the aorta at a rate of 4 Calculate the average speed of blood if min the aorta's diameter is 2.1 cm. cm V blood 0.01198 S mm (b) The aorta branches many times until the blood finally reaches the smallest branch: the capillaries. Each capillary has an average diameter of 6.9 μm and the blood slows down to 0.5 the number of capillaries in the body. Does this answer look reasonable? Calculate S n = 1.8397X10 × capillaries caps (c) For what duration of time is a red blood cell in a capillary if the average capillary length is 1 mm? t = 167.06 Sarrow_forward(a) As blood passes through the capillary bed in an organ, the capillaries join to form venules (small veins). If the blood speed increases by a factor of 4.00 and the total cross- sectional area of the venules is 10.0 cm2 , what is the total cross-sectional area of the capillaries feeding these venules? (b) How many capillaries are involved if their average diameter is 10.0 µm ?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice UniversityCollege PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax CollegeCollege PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning