College Physics
2nd Edition
ISBN: 9780134601823
Author: ETKINA, Eugenia, Planinšič, G. (gorazd), Van Heuvelen, Alan
Publisher: Pearson,
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Textbook Question
Chapter 14, Problem 8MCQ
The heart does about 1 J of work pumping blood during one heartbeat. What is the immediate first and main type of energy that increases due to the heart’s work?
a. Kinetic energy
b. Thermal energy
c. Elastic potential energy
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College Physics
Ch. 14 - Prob. 1RQCh. 14 - Prob. 2RQCh. 14 - Prob. 3RQCh. 14 - Prob. 4RQCh. 14 - Prob. 5RQCh. 14 - Review Question 14.6 Describe some of the...Ch. 14 - Review Question 14.7 When a skydiver falls at...Ch. 14 - Prob. 1MCQCh. 14 - A river flows downstream and widens, and the flow...Ch. 14 - Prob. 3MCQ
Ch. 14 - Prob. 4MCQCh. 14 - 5. As a river approaches a dam, the width of the...Ch. 14 - Prob. 6MCQCh. 14 - What is viscous flow? a. A physical phenomenon b....Ch. 14 - 8. The heart does about 1 J of work pumping blood...Ch. 14 - Several air bubbles are present in water flowing...Ch. 14 - A small metal ball is released from just below the...Ch. 14 - 11. A small metal ball is launched downward from...Ch. 14 - You have two identical large jugs with small holes...Ch. 14 - 13. Why does much of the pressure drop in the...Ch. 14 - If you partly close the end of a hose with your...Ch. 14 - Compare and contrast work-energy bar charts, which...Ch. 14 - Consider Bernoulli's equation, Poiseuille's law,...Ch. 14 - You need a liquid that will exhibit turbulent flow...Ch. 14 - Watering plants You water flowers outside your...Ch. 14 - 2. Irrigation canal You live neat an irrigation...Ch. 14 - Prob. 3PCh. 14 - 4. The main waterline for a neighborhood delivers...Ch. 14 - Prob. 5PCh. 14 - Prob. 6PCh. 14 - Represent the process sketched in Figure P14.7...Ch. 14 - * Represent the process sketched in Figure P14.8...Ch. 14 - 9. Fluid flow Problem Write a symbolic equation...Ch. 14 - Prob. 10PCh. 14 - Prob. 11PCh. 14 - Prob. 12PCh. 14 - 13. An application of Bernoulli’s equation is...Ch. 14 - Prob. 14PCh. 14 - Prob. 15PCh. 14 - * Wine flow from barrel While visiting a winery,...Ch. 14 - Water flow in city water system Water is pumped at...Ch. 14 - * The pressure of water flowing through a...Ch. 14 - * Siphoning water You want to siphon rainwater and...Ch. 14 - Prob. 20PCh. 14 - * BIO Blood flow In artery Blood flows at an...Ch. 14 - Prob. 22PCh. 14 - Prob. 23PCh. 14 - 24. * BIO Flutter in blood vessel A person has a ...Ch. 14 - 25. * BIO Effect of smoking on arteriole radius...Ch. 14 - Prob. 26PCh. 14 - 27. * You have a U-shaped tube open at both ends....Ch. 14 - Prob. 28PCh. 14 - Prob. 29PCh. 14 - Prob. 30PCh. 14 - Prob. 31PCh. 14 - Prob. 32PCh. 14 - 33. * BIO Blood flow through capillaries Your...Ch. 14 - Prob. 34PCh. 14 - * A piston pushes 20C water through a horizontal...Ch. 14 - Prob. 36PCh. 14 - * A syringe is filled with water and fixed at the...Ch. 14 - Prob. 38PCh. 14 - 39. * EST Air drag when biking Estimate the drag...Ch. 14 - Prob. 41PCh. 14 - * EST Earth exerts a constant downward force of...Ch. 14 - Prob. 43PCh. 14 - *Terminal speed of balloon A balloon of mass m...Ch. 14 - You observe four different liquids (listed with...Ch. 14 - Prob. 48GPCh. 14 - 50. ** Viscous friction with Bernoulli We can...Ch. 14 - 51. ** (a) Show that the work W done per unit time...Ch. 14 - Prob. 52GPCh. 14 - 53. ** BIO Essential hypertension Suppose your...Ch. 14 - Prob. 54GPCh. 14 - A 0.20-m-radius balloon falls at terminal speed 40...Ch. 14 - 56. ** Terminal speed of skier A skier going down...Ch. 14 - kg/m3 is placed in a 20C lake Determine the...Ch. 14 - 58. ** EST Comet crash On June 30, 1908, a...Ch. 14 - EST Intravenous (IV) feeding A patient in the...Ch. 14 - EST Intravenous (IV) feeding A patient in the...Ch. 14 - EST Intravenous (IV) feeding A patient in the...Ch. 14 - EST Intravenous (IV) feeding A patient in the...Ch. 14 - EST Intravenous (IV) feeding A patient in the...Ch. 14 - EST Intravenous (IV) feeding A patient in the...Ch. 14 - EST Intravenous (IV) feeding A patient in the...Ch. 14 - Prob. 66RPPCh. 14 - Prob. 67RPPCh. 14 - Prob. 68RPPCh. 14 - Prob. 69RPPCh. 14 - Which number below best represents the ratio of...
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- . A bicycle and rider going 10 m/s approach a hill. Their total mass is 80 kg. (a) What is their kinetic energy? (b) If the rider coasts up the hill without pedaling, how high above its starting level will the bicycle be when it finally rolls to a stop?arrow_forwardIf you run down some stairs and stop, what happens to your kinetic energy and your initial gravitational potential energy?arrow_forwardUnder normal conditions the human heart converts about 13.0 J of chemical energy per second into 1.30 W of mechanical power as it pumps blood throughout the body. (a) Determine the number of Calories required to power the heart for one day, given that 1 Calorie equals 4 186 J. (b) Metabolizing 1.00 kg of fat can release about 9.00 103 Calories of energy. What mass of metabolized fat would power the heart for one day?arrow_forward
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- A flea is able to jump about 0.5 m. It has been said that if a flea were as big as a human, it would be able to jump over a 100-story building! When an animal jumps, it converts work done in contracting muscles into gravitational potential energy (with some steps in between). The maximum force exerted by a muscle is proportional to its cross-sectional area, and the work done by the muscle is this force times the length of contraction. If we magnified a flea by a factor of 1 000, the cross section of its muscle would increase by 1 0002 and the length of contraction would increase by 1 000. How high would this superflea be able to jump? (Dont forget that the mass of the superflea" increases as well.)arrow_forwardA flea is able to jump about 0.5 m. It has been said that if a flea were as big as a human, it would be able to jump over a 100-story building! When an animal jumps, it converts work done in contracting muscles into gravitational potential energy (with some steps in between). The maximum force exerted by a muscle is proportional to its cross-sectional area, and the work done by the muscle is this force times the length of contraction. If we magnified a flea by a factor of 1 000, the cross section of its muscle would increase by 1 0002 and the length of contraction would increase by 1 000. How high would this superflea be able to jump? (Dont forget that the mass of the superflea" increases as well.)arrow_forwardIn Chapter 7, the work-kinetic energy theorem, W = K, was introduced. This equation states that work done on a system appears as a change in kinetic energy. It is a special-case equation, valid if there are no changes in any other type of energy such as potential or internal. Give two or three examples in which work is done on a system but the change in energy of the system is not a change in kinetic energy.arrow_forward
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Kinetic Energy and Potential Energy; Author: Professor Dave explains;https://www.youtube.com/watch?v=g7u6pIfUVy4;License: Standard YouTube License, CC-BY