Modified Mastering Physics with Pearson eText -- Access Card -- for Physics (18-Weeks)
5th Edition
ISBN: 9780136781356
Author: Walker, JAMES
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 15, Problem 84GP
BIO Power Output of the Heart The power output of the heart is given by the product of the average blood pressure, 1.33 N/cm2, and the flow rate, 105 cm3/s. (a) Find the power of the heart. Give your answer in watts. (b) How much energy does the heart expend in a day? (c) Suppose the energy found in part (b) is used to lift a 72-kg person vertically to a height h. Find h, in meters.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionChapter 15 Solutions
Modified Mastering Physics with Pearson eText -- Access Card -- for Physics (18-Weeks)
Ch. 15.1 - Prob. 1EYUCh. 15.2 - A force F acts on a circular area of radius r....Ch. 15.3 - Is the increase in pressure from the surface of...Ch. 15.4 - Is the buoyant force exerted on a cubical block of...Ch. 15.5 - A cup is filled to the brim with water. Floating...Ch. 15.6 - Water flows with a speed V through a pipe. If the...Ch. 15.7 - Water flows through a pipe with a varying...Ch. 15.8 - Prob. 8EYUCh. 15.9 - Which pipe requires a greater pressure difference...Ch. 15 - Suppose you drink a liquid through a straw....
Ch. 15 - Considering your answer to the previous question,...Ch. 15 - Prob. 3CQCh. 15 - What holds a suction cup in place?Ch. 15 - Suppose a force of 400 N is required to push the...Ch. 15 - Why is it more practical to use mercury in the...Ch. 15 - An objects density can be determined by first...Ch. 15 - How does a balloonist control the vertical motion...Ch. 15 - Why is it possible for people to float without...Ch. 15 - Prob. 10CQCh. 15 - One day, while snorkeling near the surface of a...Ch. 15 - Since metal is more dense than water, how is it...Ch. 15 - A sheet of water passing over a waterfall is...Ch. 15 - It is a common observation that smoke rises more...Ch. 15 - Prob. 15CQCh. 15 - If you have a hair dryer and a Ping Pong ball at...Ch. 15 - Prob. 1PCECh. 15 - What weight of water is required to fill a...Ch. 15 - You buy a gold ring at a pawn shop. The ring has a...Ch. 15 - A cube of metal has a mass of 0.347 kg and...Ch. 15 - What is the downward force exerted by the...Ch. 15 - Prob. 6PCECh. 15 - A 71-kg person sits on a 3.9-kg chair. Each leg of...Ch. 15 - To prevent damage to floors (and to increase...Ch. 15 - Suppose that when you ride on your 7.85-kg bike...Ch. 15 - Shock Wave Pressure On February 15, 2013, a...Ch. 15 - Predict/Calculate The weight of your 1420-kg car...Ch. 15 - Two drinking glasses, 1 and 2, are filled with...Ch. 15 - Figure 15-39 shows four containers, each filled...Ch. 15 - Water in the lake behind Hoover Dam is 221 m deep....Ch. 15 - In a classroom demonstration, the pressure inside...Ch. 15 - As a storm front moves in, you notice that the...Ch. 15 - Prob. 17PCECh. 15 - A circular wine barrel 75 cm in diameter will...Ch. 15 - A cylindrical container with a cross-sectional...Ch. 15 - Prob. 20PCECh. 15 - Predict/Calculate A water storage tower is filled...Ch. 15 - Predict/Calculate You step into an elevator...Ch. 15 - Suppose you pour water into a container until it...Ch. 15 - Referring to Example 15-8, suppose that some...Ch. 15 - Prob. 25PCECh. 15 - BIO Predict/Calculate The patient in Figure 15-41...Ch. 15 - A cylindrical container 1.0 m tall contains...Ch. 15 - Prob. 28PCECh. 15 - Lead is more dense than aluminum. (a) Is the...Ch. 15 - A fish adjusts its buoyancy to hover in one place...Ch. 15 - A raft is 3.7 m wide and 6.1 m long. When a horse...Ch. 15 - Prob. 32PCECh. 15 - Prob. 33PCECh. 15 - A 3.2-kg balloon is filled with helium (density =...Ch. 15 - A hot-air balloon plus cargo has a mass of 312 kg...Ch. 15 - In the lab you place a beaker that is half full of...Ch. 15 - Predict/Explain A block of wood has a steel ball...Ch. 15 - Predict/Explain In the preceding problem, suppose...Ch. 15 - Measuring Density with a Hydrometer A hydrometer,...Ch. 15 - Predict/Explain Referring to Example 15-12,...Ch. 15 - On a planet in a different solar system the...Ch. 15 - An air mattress is 2.3 m long, 0.66 m wide, and 14...Ch. 15 - A solid block is attached to a spring scale. When...Ch. 15 - Prob. 44PCECh. 15 - BIO A person weighs 756 N in air and has a...Ch. 15 - Predict/Calculate A log floats in a river with...Ch. 15 - A person with a mass of 78 kg and a volume of...Ch. 15 - Predict/Calculate A block of wood floats on water....Ch. 15 - A piece of lead has the shape of a hockey puck,...Ch. 15 - Predict/Calculate A lead weight with a volume of...Ch. 15 - To water the yard, you use a hose with a diameter...Ch. 15 - Water flows through a pipe with a speed of 2.4...Ch. 15 - To fill a childs inflatable wading pool, you use a...Ch. 15 - Prob. 54PCECh. 15 - Prob. 55PCECh. 15 - Prob. 56PCECh. 15 - A river narrows at a rapids from a width of 12 m...Ch. 15 - Prob. 58PCECh. 15 - BIO Plaque in an Artery The buildup of plaque on...Ch. 15 - A horizontal pipe contains water at a pressure of...Ch. 15 - Unfiltered olive oil must flow at a minimum speed...Ch. 15 - Prob. 62PCECh. 15 - Predict/Calculate Water flows through a horizontal...Ch. 15 - A garden hose is attached to a water faucet on one...Ch. 15 - A water tank springs a leak. Find the speed of...Ch. 15 - (a) Find the pressure difference on an airplane...Ch. 15 - On a vacation flight, you look out the window of...Ch. 15 - Prob. 68PCECh. 15 - Predict/Calculate During a thunderstorm, winds...Ch. 15 - A garden hose with a diameter of 1.6 cm has water...Ch. 15 - Prob. 71PCECh. 15 - BIO Vasodilation When the body requires an...Ch. 15 - BIO (a) Find the volume of blood that flows per...Ch. 15 - BIO An Occlusion in an Artery Suppose an occlusion...Ch. 15 - Motor Oil The viscosity of 5W-30 motor oil changes...Ch. 15 - Prob. 76PCECh. 15 - Prob. 77GPCh. 15 - CE Predict/Explain A person floats in a boat in a...Ch. 15 - CE A person floats in a boat in a small backyard...Ch. 15 - CE The three identical containers in Figure 15-46...Ch. 15 - Prob. 81GPCh. 15 - A water main broke on Lake Shore Drive in Chicago...Ch. 15 - Prob. 83GPCh. 15 - BIO Power Output of the Heart The power output of...Ch. 15 - A solid block is suspended from a spring scale....Ch. 15 - A wooden block with a density of 710 kg/m3 and a...Ch. 15 - Predict/Calculate Floating a Ball and Block A...Ch. 15 - The Depth of the Atmosphere Evangelista Torricelli...Ch. 15 - The Hydrostatic Paradox I Consider the lightweight...Ch. 15 - The Hydrostatic Paradox II Consider the two...Ch. 15 - Predict/Calculate A backyard swimming pool is...Ch. 15 - A prospector finds a solid rock composed of...Ch. 15 - Predict/Calculate (a) If the tension in the string...Ch. 15 - Prob. 94GPCh. 15 - Prob. 95GPCh. 15 - Prob. 96GPCh. 15 - BIO A person weighs 685 N in air but only 497 N...Ch. 15 - Thunderstorm Outflow Rain-cooled air near the core...Ch. 15 - A horizontal pipe carries oil whose coefficient of...Ch. 15 - BIO A patient is given an injection with a...Ch. 15 - Going Over Like a Mythbuster Lead Balloon On one...Ch. 15 - A round wooden log with a diameter of 73 cm floats...Ch. 15 - Figure 15-52 Problem 103 103. The hollow,...Ch. 15 - A geode is a hollow rock with a solid shell and an...Ch. 15 - A tank of water filled to a depth d has a hole in...Ch. 15 - The water tank in Figure 15-53 is open to the...Ch. 15 - Prob. 107PPCh. 15 - Prob. 108PPCh. 15 - Doughnuts are cooked by dropping the dough into...Ch. 15 - Prob. 110PPCh. 15 - Predict/Calculate Referring to Example 15-8...Ch. 15 - Referring to Example 15-8 Find the height...Ch. 15 - Referring to Example 15-24 (a) Find the height H...Ch. 15 - Prob. 116PP
Additional Science Textbook Solutions
Find more solutions based on key concepts
Add 1.46 m and 2.3 cm.
Essential University Physics (3rd Edition)
11. If the graph of the velocity of an object as a function of time is a straight line, what can you conclude a...
College Physics (10th Edition)
What is die strength of the electric field in a region where the electric potential is constant?
University Physics Volume 2
7.23 •• A 2.50-kg mass is pushed against a horizontal spring of force constant 25.0 N/cm on a frictionless air ...
University Physics (14th Edition)
Explain all answers clearly, with complete sentences and proper essay structure if needed. An asterisk (*) desi...
Cosmic Perspective Fundamentals
An electric field and a magnetic field have the same energy density. Find an expression for the ratio E/B and e...
Essential University Physics: Volume 2 (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
- Confirm the value given for the kinetic energy of an aircraft carrier in Table 7.1. You will need to look up the definition of a nautical mile (1knot=1nauticalmile/h) .arrow_forwardIf you run down some stairs and stop, what happens to your kinetic energy and your initial gravitational potential energy?arrow_forwardMountain climbers carry bottled oxygen when at very high altitudes. (a) Assuming that a mountain climber uses oxygen at twice the rate for climbing 116 stairs per minute (because of low air temperature and winds), calculate how many liters of oxygen a climber would need for 10.0 h of climbing. (These are liters at sea level.) Note that only 40% of the inhaled oxygen is utilized; the rest is exhaled. (b) How much useful work does the climber do if he and his equipment have a mass of 90.0 kg and he gains 1000 m of altitude? (c) What is his efficiency for the 10.0-h climb?arrow_forward
- A student has the idea that the total work done on an object is equal to its final kinetic energy. Is this idea true always, sometimes, or never? Ii it is sometimes true, under what circumstances? If it is always or never true, explain why.arrow_forwardIn Example 7.7, we calculated the final speed of a roller coaster that descended 20m in height and had an initial speed of 5 m/s downhill. Suppose the roller coaster had had an initial speed of 5 m/s uphill instead, and it coasted uphill, stopped, and then rolled back down to a final point 20m below the start. We would find that case that it had the same final speed. Explain in terms of conservation of energy.arrow_forwardThe kinetic energy of a system must always be positive or zero. Explain whether this is true for the potential energy of a system.arrow_forward
- A hydroelectric power facility (see Figure 7.38) converts the gravitational potential energy of water behind a dam to electric energy. (a) What is the gravitational potential energy relative to the generators of a lake of volume 50.0 km3(mass=5.001013Kg), given that the lake has an average height of 40.0 m above the generators? (b) Compare this with the energy stored in a 9-megaton fusion bomb. Figure 7.38 Hydroelectric facility (credit: Denis Belevich, Wikimedia Commons)arrow_forwardWhat does work on a shuffleboard puck as it slides to rest? Why is the board dusted, and how does this affect work?arrow_forwardConsider the energy transfers and transformations listed below in parts (a) through (e). For each part, (i) describe human-made devices designed to pro-duce each of the energy transfers or transformations and, (ii) whenever possible, describe a natural process in which the energy transfer or transformation occurs. Give details to defend your choices, such as identifying the system and identifying other output energy if the device or natural process has limited efficiency. (a) Chemical potential energy transforms into internal energy. (b) Energy transferred by electrical transmission becomes gravitational potential energy. (c) Elastic potential energy transfers out of a system by heat. (d) Energy transferred by mechanical waves does work on a system. (e) Energy carried by electromagnetic waves becomes kinetic energy in a system.arrow_forward
- Give an example of something think of as work in everyday circumstances that is not work in the scientific sense. Is energy transferred or changed in form in your example? If so, explain how this without doing work.arrow_forwardPhysics Review An athlete lifts a 175-kg barbell through a vertical displacement of 2.00 m, requiring 4.30 s for the lift. (a) Calculate the average mechanical power he must deliver to the barbell during the lift. (b) For a short period he lifts the barbell at a constant speed of 0.600 m/s. What instantaneous power does he deliver so the barbell during the time? (See Section 5.6)arrow_forwardIntegrated Concepts (a) Calculate the force the woman in Figure 7.46 exerts to do a push-up at constant speed, taking all data to be known to three digits. (b) How much work does she do if her center of mass rises 0.240 m? (c) What is her useful power output if she does 25 push-ups in 1 min? (Should work done lowering her body be included? See the discussion of useful work in Work, Energy, and Power in Humans. Figure 7.46 Forces involved in doing push-ups. The woman's weight acts as a force exerted downward on her center of gravity (CG).arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax CollegePrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Kinetic Energy and Potential Energy; Author: Professor Dave explains;https://www.youtube.com/watch?v=g7u6pIfUVy4;License: Standard YouTube License, CC-BY