College Physics: Explore And Apply, Volume 2 (2nd Edition)
2nd Edition
ISBN: 9780134862910
Author: Eugenia Etkina, Gorazd Planinsic, Alan Van Heuvelen, Gorzad Planinsic
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 14, Problem 39P
* EST Air drag when biking Estimate the drag force opposing your motion when you ride a bicycle at 8 m/s.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Jane, who has a mass of 81.0 kg, is
riding at 15.0 m/s in his new car when
she must suddenly slam on the brakes
for the traffic light. She feels a pull on
the seatbelt, and brings her body to a
stop in 0.5 s. What average force does
the seat belt exert on her?
*
V1
Refer to Figure
the brakes are released. The coefficient of kinetic friction between the tires and the road is 0.7.
A truck is traveling at 31 m/s when the brakes are fully applied causing the wheels to skid for 3 seconds and then
What is the final speed of the truck in units of m/s ?
O 10.40
O 7.40
O 13.40
O 4.40
Which of the following statements about friction is not true? *
A. An object of large mass is pulled down onto a surface with a greater force than an object of low mass and, as a consequence, experiences a greater friction
B. The direction of friction is always opposite to the direction of motion
C. Friction is a force
D. The direction of friction is always the same as the direction of motion
Chapter 14 Solutions
College Physics: Explore And Apply, Volume 2 (2nd Edition)
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...
Additional Science Textbook Solutions
Find more solutions based on key concepts
10. A gas cylinder contains 1.0 mol of helium at a temperature of 20°C. A second identical cylinder contains 1....
College Physics: A Strategic Approach (4th Edition)
Choose the best answer to each of the following. Explain your reasoning. Acceptance of Einsteins theory of grav...
Cosmic Perspective Fundamentals
The lens that the person used as the objective.
Physics (5th Edition)
The pV-diagram of the Carnot cycle.
Sears And Zemansky's University Physics With Modern Physics
BIO THE SPINNING EEL. American eels (Anguilla rostrata) are freshwater fish with long, slender bodies that we c...
University Physics with Modern Physics (14th 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
- Review. A student, along with her backpack on the floor next to her, is in an elevator that is accelerating upward with acceleration a. The student gives her backpack a quick kick at t = 0, imparting to it speed v and causing it to slide across the elevator floor. At time t, the backpack hits the opposite wall a distance L away from the student. Find the coefficient of kinetic friction k between the backpack and the elevator floor.arrow_forwardAn 8 Kg ball rolling at 2 m/s bumps into a pillow and stop in 0.5 seconds. Sketch a graph of the force exerted by the pillow on the ball versus time. Two significant figures the average force exerted on the ball by the pillow during the 0.5 second is ___ Narrow_forward25. Determine the velocity of the crate in 4.5 seconds starting from rest. * Situation 4: The 50kg crate shown in the figure rests on a horizontal surface for which the coefficient of kinetic friction is µk = 0.2. The crate is subjected to a 500N towing force as shown. 500N 30° 43.29m/s 34.64m/s O 40.50m/s 38.12m/sarrow_forward
- *CANNOT BE HAND-DRAWN** Driving home from school one day, you spot a ball rolling out into the street. You brake for 1.20 s, slowing your 950-kg car from 16.0 m/s to 9.50 m/s. (a) What was the average force exerted on your car during braking? (b) How far did you travel while braking?arrow_forwardQ2) On an inclined surface frictionless, snow covered, a skier has a speed of 45 mph at the bottom of 300 ft long. What is the angle of the slope? *arrow_forwardSally is driving at a constant speed of 25 m/s on a straight horizontal road. She sees an obstacle on the road ahead and applies the brakes! The wheels lock causing the car to slide forward. If the coefficient of kinetic friction between the tires and the road is 0.40, how long does it take the car to come to a complete stop? * please do not use hand writing -- hard to read **arrow_forward
- 3. You push a grocery cart along a level floor in the presence of friction effects between the cart and the floor. a. Draw force diagrams for you, the cart, and the floor/earth. Fully label all vectors. b. While you are making the cart speed up, how does the size of the force you apply on the cart b. compare to the size of the force the cart exerts on you? Explain. c. While you are making the cart speed up, how does the size of the frictional force on the cart by the floor compare to the frictional force on you by the floor?arrow_forwardExample: An object of mass 5 kg is released from rest 10 m above the ground and allowed to fall freely under gravity. Assume that drag force is proportional to the velocity of the object with drag coefficient k = 50 N-sec/m. Determine the equation of the velocity of the object.arrow_forwardWhich of the following statements are true regarding an object in freefall? You can ignore air resistance for this question. Select all that apply. A. A heavier object will fall faster than a lighter object. B. A ball is dropped off a tall tower. After 3 seconds the ball has fallen 45 m. This means its final velocity at that point is 15 m/s. C. The only force acting on an object in freefall is the force of gravity. D. An object is thrown upward. As it moves upwards its speed will decrease by 10 m/s each second. E. A ball is dropped from a tall tower. As it falls it will travel 10 m for each second that it falls. F. A ball is thrown up into the air. At the very top of its path, the acceleration on the ball is 0 m/s/s.arrow_forward
- School bus drivers are extra careful when they cross railroad tracks. They stop before they cross railroad tracks to be sure that there is no train coming. Yet, trains typically move slower through towns than cars do. If trains usually move slower than cars, why can they do more damage if they hit something in their path? *arrow_forwardTop GunContext Watching the excellent movie Top Gun: Maverick , you are impressed by the cables used to stop the fighter planes on the aircraft carrier. You would like to model the tension in the cable needed to stop the plane, so that you can choose a type of cable that can withstand this tension. Constraints The mass of the fighter plane and its initial speed are known.The length of the airstrip is known.The force exerted by the cable is assumed to be constant. It is assumed that a single cable stops the aircraft by exerting a horizontal force perfectly opposed to the movement of the aircraft. Modelization Model the modulus of force exerted by a cable that succeeds in stopping a fighter plane, given known parameters. Then test your model with the following parameters, giving your answer in kN. Aircraft mass = 25000 kg Initial velocity = 245 km/h Track length = 80 marrow_forwardA hockey puck slides with constant velocity, from point “a” to point “b” along a frictionless horizontal surface. When the puck reaches point “b”, it receives a instantaneous horizontal “kick “ in the direction as depicted by the heavy arrow. a) Along the frictionless path you have chosen, how does the speed of the puck vary after receiving the “kick”? *a. No change. b. Continuously increasing. c. Increasing for a while, and decreasing thereafter. d. Constant from a while and decreasing thereafter.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
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, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Newton's Third Law of Motion: Action and Reaction; Author: Professor Dave explains;https://www.youtube.com/watch?v=y61_VPKH2B4;License: Standard YouTube License, CC-BY