College Physics
OER 2016 Edition
ISBN: 9781947172173
Author: OpenStax
Publisher: OpenStax College
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Textbook Question
Chapter 5, Problem 9CQ
The elastic properties of the arteries are essential for blood flow. Explain the importance of this in terms of the characteristics of the flow of blood (pulsating or continuous),
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Chapter 5 Solutions
College Physics
Ch. 5 - Define normal force. What is its relationship to...Ch. 5 - The glue on a piece of tape can exert forces. Can...Ch. 5 - When you learn to drive, you discover that you...Ch. 5 - When you push a piece of chalk across a...Ch. 5 - Athletes such as swimmers and bicyclists wear body...Ch. 5 - Two expressions were used for the drag force...Ch. 5 - As cars travel, oil and gasoline leaks onto the...Ch. 5 - Why can a squirrel jump from a tree branch to the...Ch. 5 - The elastic properties of the arteries are...Ch. 5 - What are you feeling when you feel your pulse?...
Ch. 5 - Examine different types of shoes, including sports...Ch. 5 - Would you expect your height to be different...Ch. 5 - Why can a squirrel from a tree branch to the...Ch. 5 - Explain why pregnant women often suffer from back...Ch. 5 - An old carpenter's trick to keep nails from...Ch. 5 - When a glass bottle full of vinegar warms up, both...Ch. 5 - A physics major is cooking breakfast when he...Ch. 5 - (a) When rebuilding her car's engine, a physics...Ch. 5 - (a) What is the maximum frictional force in the...Ch. 5 - Suppose you have a 120-kg wooden crate resting on...Ch. 5 - (a) If half of the weight of a small 1.00103 kg...Ch. 5 - A team of eight dogs pulls a sled with waxed wood...Ch. 5 - Consider the 65.0-kg ice skater being pushed by...Ch. 5 - Show that the acceleration of any object down a...Ch. 5 - Show that the acceleration of any object down an...Ch. 5 - Calculate the deceleration of a snow boarder going...Ch. 5 - (a) Calculate the acceleration of a skier heading...Ch. 5 - If an object is to rest on an incline without...Ch. 5 - Calculate the maximum deceleration of a car that...Ch. 5 - Calculate the maximum acceleration of a car that...Ch. 5 - Repeat Exercise 5.14 for a car with four-wheel...Ch. 5 - A freight train consists of two 8.00105 -kg...Ch. 5 - Consider the 52.0-kg mountain climber in Figure...Ch. 5 - A contestant in a winter sporting event pushes a...Ch. 5 - Repeat Exercise 5.18 with the contestant pulling...Ch. 5 - The terminal velocity of a person falling in air...Ch. 5 - A 60-kg and a go-kg skydiver jump from an airplane...Ch. 5 - A 560-g squirrel with a surface area of 930 cm2...Ch. 5 - To maintain a constant speed, the force provided...Ch. 5 - By what factor does the drag force on a car...Ch. 5 - Calculate the speed a spherical rain drop would...Ch. 5 - Using Stokes' law, verify that the units for...Ch. 5 - Find the terminal velocity of a spherical...Ch. 5 - Stokes' law describes sedimentation of particles...Ch. 5 - During a circus act, one performer swings upside...Ch. 5 - During a wrestling match, a 150 kg wrestler...Ch. 5 - (a) The "lead" in pencils is a graphite...Ch. 5 - TV broadcast antennas are the tallest artificial...Ch. 5 - (a) By how much does a 65.0-kg mountain climber...Ch. 5 - A 20.0-m tall hollow aluminum flagpole is...Ch. 5 - As an oil well is drilled, each new section of...Ch. 5 - Calculate the force a piano tuner applies to...Ch. 5 - A vertebra is subjected to a shearing force of 500...Ch. 5 - A disk between vertebrae in the spine is subjected...Ch. 5 - When using a pencil eraser, you exert a vertical...Ch. 5 - To consider the effect of wires hung on poles, we...Ch. 5 - A farmer making grape juice fills a glass bottle...Ch. 5 - (a) When water freezes, its volume increases by...Ch. 5 - This problem returns to the tightrope walker...Ch. 5 - The pole in Figure 5.24 is at a 90.0° bend in a...Ch. 5 - Prob. 1TPCh. 5 - Prob. 2TPCh. 5 - Prob. 3TPCh. 5 - Prob. 4TP
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Similar questions
- Blood 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_forwardDuring a marathon race, a runner's blood flow increases to 10.0 times her resting rate. Her blood's viscosity has 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 has the average radii of her blood vessels increased?arrow_forwardTwo wires are made of the same material, their Young’s Modulus constant is 10 x10^10 Pa. Wire X is 5 times as long and has half the diameter of wire Y. If they are to be compressed by the same amount, the needed force on Y must bearrow_forward
- Some claim that mountain climbers suffer from headaches due not only to a lack of oxygen in the brain, but also to the expansion of the brain in the cranium. Find the fractional change of the brain's volume due to a reduction in pressure from (1.48x10^2) kPa at sea level to 27.0 kPa high in the Himalayas. The bulk modulus is 2.10 GPa. Give your answer with three significant figures. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 Answerarrow_forwardASAP please...arrow_forwardWater ilows smoothly in a hor- Tigure 4 ZU Quesuon o. izontal pipe. Figure 14-27 shows the kinetic energy K of a water el- K ement as it moves along an x axis that runs along the pipe. Rank the three lettered sections of the pipe according to the pipe radius, great- est first. Figure 14-27 Question 9.arrow_forward
- As the initially empty urinary bladder fills with urine and expands, its internal pressure increases by 3300 Pa, which triggers the micturition reflex (the feeling of the need to urinate). The figure shows a horizontal, square section of the bladder wall with an edge length of 0.010 m. Because the bladder is stretched, four tension forces of equal magnitude T act on the square section, one at each edge, and each force is directed at an angle & below the horizontal. What is the magnitude T of the tension force acting on one edge of the section when the uinternal bladder pressure is 3300 Pa and each of the four tension forces is directed 3.2° below the horizontal?arrow_forwardWhen water freezes, it expands by about 9%. What would be the pressure increase inside your automobile's engine block if the water in it froze? (Bulk modulus of ice is 2 x 109 N/m2) O 1.8 x 108 N O 1.8 x 108 Pa 2.22 x 1010 N O 2.22 x 1010 Paarrow_forwardMO 8-6. Compute the average velocity of the blood in the aorta of radius 1 cm if the flow rate is 5 liter/min.arrow_forward
- The left ventricle of a resting adults heart pumps blood at a flow rate of 81.0 cm^3/s, increasing its pressure by 110 mm Hg, it's velocity from zero to 35.0 cm/s and it's height by 5.00 cm. ( all numbers are averaged over the entire heartbeat ) Calculate the total power output ( in W) of the left ventricle. Note that most of the power is used to increase blood pressure.arrow_forwardAn airplane flies at 300 km/h at sea level at 20°C. The propeller diameter is 1.8 m, and the velocity of the air through the propeller is 360 km/hr. Find: ( a) The slipstream velocity relative to the airplane. (b) The thrust. (c) The power input. (d) The power output. (e) The efficiency. (f) The pressure difference across the propeller disk.arrow_forwardA hydraulic press has a safety feature which consists of a hydraulic cylinder with a piston at one end and a safety valve at the other. The cylinder has a radius of 0.0220 m and the safety valve is simply a 0.00800-m radius circular opening at one end, sealed with a disk. The disk is held in place by a spring with a spring constant of 825 N/m that has been compressed 0.0095 m from its natural length. Determine the magnitude of the minimum force that must be exerted on the piston in order to open the safety valve. Narrow_forward
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