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 92P
The 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?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
The arterioles (small arteries) leading to an organ, constrict in order to decrease flow to the organ. To shut down an organ, blood flow is reduced naturally to 2.10% of its original value. By what factor did the radii of the arterioles constrict? Penguins do this when they stand on ice to reduce the blood flow to their feet.
A major artery with a cross-sectional area of 0.95 cm2 branches into 18 smaller arteries, each with an average cross-sectional area of 0.39 cm2.
By what factor is the average speed of the blood reduced when it passes into these branches?
v2/v1=
If you are infusing a 1 L Iv bag of a normal saline at a rate of 100 ml per hour, how long will it take for the entire IV bag to infuse into the patient ?
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
What are four functions of connective tissue?
Anatomy & Physiology (6th Edition)
9. Two narrow slits are illuminated by light of wavelength ?. The slits are spaced 20 wavelengths apart. What i...
College Physics: A Strategic Approach (3rd Edition)
With what geologic feature are the earthquakes in the mid-Atlantic associated?
Applications and Investigations in Earth Science (9th Edition)
Match each of the following items with all the terms it applies to:
Human Physiology: An Integrated Approach (8th Edition)
Where are skeletal cartilages located?
Human Anatomy & Physiology (2nd Edition)
1.1 Write a one-sentence definition for each of the following:
a. chemistry
b. chemical
Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
Knowledge Booster
Similar questions
- (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_forwardAngioplasty 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_forwardA major artery with a cross-sectional area of 1.00 cm2 branches into 18 smaller arteries, each with an average cross-sectional area of 0.400cm2. By what factor is the average velocity of the blood reduced when it passes into these branches? 5/36 7/36 9/36 11/36 13/36arrow_forward
- The blood speed in a normal segment of a horizontal artery is 0.180 m/s. An abnormal segment of the artery is narrowed down by an arteriosclerotic plaque to 1/4 of its normal cross-sectional area. What is the difference in blood pressure between the normal and constricted segments of the artery?arrow_forwardThis is a practice problemarrow_forwardA medical technician is trying to determine what percentage of a patient's artery is blocked by plaque. To do this, she measures the blood pressure just before the region of blockage and finds that it is P₁, while in the region of blockage it is P2. Furthermore, she knows that blood flowing through the normal artery just before the point of blockage is traveling at v₁, and the density of this patient's blood is p. The patient is laying down so there are no differential effects due to gravity. a. Symbolically, what is the ratio of the artery radius at the blockage, r2, to the ratio of the artery radius at the blockage, r₁? (find r₂/r₁) b. Find the numerical value of r2/r1. P₁ = 1.20x104 Pa, P₂=1.15×104 Pa, v₁ =30.0 cm/s, p = 1060 kg/m³.arrow_forward
- There are two carotid arteries that feed blood to the brain, one on each side of the neck and head. One patient’s carotid arteries are each 11.2 cm long and have an inside diameter of 5.2 mm. Near the middle of the left artery, however, is a 2.0-cmlong stenosis, a section of the artery with a smaller diameter of 3.4 mm. For the same blood flow rate, what is the ratio of thepressure drop along the patient’s left carotid artery to the drop along his right artery?arrow_forwardA medical technician is trying to determine what percentage of a patient's artery is blocked by plaque. To do this, she measures the blood pressure just before the region of blockage and finds that it is 1.20×104 PaPa , while in the region of blockage it is 1.15×104 PaPa . Furthermore, she knows that blood flowing through the normal artery just before the point of blockage is traveling at 30.0 cm/scm/s , and the specific gravity of this patient's blood is 1.06. 1. What percentage of the cross-sectional area of the patient's artery is blocked by the plaque? Express your answer in percent.arrow_forwardA medical technician is trying to determine what percentage of a patient’s artery is blocked by plaque. To do this, she measures the blood pressure just before the region of blockage and finds that it is 1.20×104Pa, while in the region of the blockage it is 1.15×104Pa. Furthermore, she knows that blood flowing through the normal artery just before the point of blockage is traveling at 30.0 cm/s, and the specific gravity of this patient blood is 1.06. What percentage of the cross-sectional area of the patient’s artery is blocked by the plaque? (NO NEED TO PUT PERCENT SYMBOL).arrow_forward
- Flow rate question: You are asked to help educate a patient on ramifications of a partial arterial blockage you have recently discovered. If the radius of the artery decreases by a factor of 1.5 because of the blockage, by what factor has the volume flow rate decreased?arrow_forwardThere are two carotid arteries that feed blood to the brain, one on each side of the neck and head. One patient's carotid arteries are each 11.2 cm long and have an inside diameter of 5.1 mm . Near the middle of the left artery, however, is a 2.0-cm-long stenosis, a section of the artery with a smaller diameter of 3.2 mm . For the same blood flow rate, what is the ratio of the pressure drop along the patient's left carotid artery to the drop along his right artery?arrow_forwardThe volume flow rate in an artery supplying the brain is 3.6 x 10-6 m3/s. a) If the radius of the artery is 5.2 mm, determine the average blood flow speed. b) Find the average blood speed at a constriction in the artery if the constriction reduces the radius to one – third of the original. Assume that the volume flow rate is the same as that in part (a).arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College