College Physics
7th Edition
ISBN: 9780321601834
Author: Jerry D. Wilson, Anthony J. Buffa, Bo Lou
Publisher: Addison-Wesley
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 5, Problem 17CQ
To determine
Whether the mechanical energy of the balls are the same at half the height.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Define operational amplifier
A bungee jumper plans to bungee jump from a bridge 64.0 m above the ground. He plans to use a uniform elastic cord, tied to a harness around his body, to stop his fall at a point 6.00 m above the water. Model his body as a particle and the cord as having negligible mass and obeying
Hooke's law. In a preliminary test he finds that when hanging at rest from a 5.00 m length of the cord, his body weight stretches it by 1.55 m. He will drop from rest at the point where the top end of a longer section of the cord is attached to the bridge.
(a) What length of cord should he use?
Use subscripts 1 and 2 respectively to represent the 5.00 m test length and the actual jump length. Use Hooke's law F = KAL and the fact that the change in length AL for a given force is proportional the length L (AL = CL), to determine the force constant for the test case and for the
jump case. Use conservation of mechanical energy to determine the length of the rope. m
(b) What maximum acceleration will he…
9 V
300 Ω
www
100 Ω 200 Ω
www
400 Ω
500 Ω
www
600 Ω
ww
700 Ω
Figure 1: Circuit symbols for a variety of useful circuit elements
Problem 04.07 (17 points). Answer the following questions related to the figure below.
A What is the equivalent resistance of the network of resistors in the circuit below?
B If the battery has an EMF of 9V and is considered as an ideal batter (internal resistance
is zero), how much current flows through it in this circuit?
C If the 9V EMF battery has an internal resistance of 2 2, would this current be larger
or smaller? By how much?
D In the ideal battery case, calculate the current through and the voltage across each
resistor in the circuit.
Chapter 5 Solutions
College Physics
Ch. 5 - Prob. 1MCQCh. 5 - Prob. 2MCQCh. 5 - Prob. 3MCQCh. 5 - Work done in free fall (a) is only positive, (b)...Ch. 5 - Which one of the following has units of work: (a)...Ch. 5 - Prob. 6MCQCh. 5 - Which of the following is a scalar quantity: (a)...Ch. 5 - Prob. 8MCQCh. 5 - Prob. 9MCQCh. 5 - Prob. 10MCQ
Ch. 5 - A change in gravitational potential energy (a) is...Ch. 5 - The change in gravitational potential energy can...Ch. 5 - Prob. 13MCQCh. 5 - Prob. 14MCQCh. 5 - Prob. 15MCQCh. 5 - Prob. 16MCQCh. 5 - Prob. 17MCQCh. 5 - If the two springs in Exercise 17 are compressed...Ch. 5 - Prob. 19MCQCh. 5 - Prob. 20MCQCh. 5 - Which of the following is not a unit of power: (a)...Ch. 5 - Consider a 2.0-hp motor and a 1.0-hp motor....Ch. 5 - Prob. 1CQCh. 5 - Prob. 2CQCh. 5 - Prob. 3CQCh. 5 - Prob. 4CQCh. 5 - Prob. 5CQCh. 5 - Prob. 6CQCh. 5 - Prob. 7CQCh. 5 - Prob. 8CQCh. 5 - Prob. 9CQCh. 5 - Prob. 10CQCh. 5 - Prob. 11CQCh. 5 - Prob. 12CQCh. 5 - Prob. 13CQCh. 5 - Prob. 14CQCh. 5 - For a classroom demonstration, a bowling ball...Ch. 5 - Prob. 16CQCh. 5 - Prob. 17CQCh. 5 - If the two springs in Exercise 17 are compressed...Ch. 5 - (a) Does efficiency describe how fast work is...Ch. 5 - Two students who weigh the same start at the same...Ch. 5 - Prob. 1ECh. 5 - Prob. 2ECh. 5 - Prob. 3ECh. 5 - Prob. 4ECh. 5 - Prob. 5ECh. 5 - A father pulls his young daughter on a sled with a...Ch. 5 - A father pushes horizontally on his daughter’s...Ch. 5 - Prob. 8ECh. 5 - Prob. 9ECh. 5 - A crate is dragged 3.0 m along a rough floor with...Ch. 5 - A hot-air balloon ascends at a constant rate. (a)...Ch. 5 - Prob. 12ECh. 5 - An eraser with a mass of 100 g sits on a book at...Ch. 5 - Prob. 14ECh. 5 - Prob. 15ECh. 5 - Prob. 17ECh. 5 - Prob. 18ECh. 5 - Prob. 19ECh. 5 - Prob. 20ECh. 5 - A certain amount of work is required to stretch a...Ch. 5 - Compute the work done by the variable force in the...Ch. 5 - Prob. 23ECh. 5 - In gravity-free interstellar space, a spaceship...Ch. 5 - A particular spring has a force constant of 2.5 ×...Ch. 5 - Prob. 26ECh. 5 - In stretching a spring in an experiment, a student...Ch. 5 - Prob. 28ECh. 5 - Prob. 29ECh. 5 - A 1200-kg automobile travels at 90 km/h. (a) What...Ch. 5 - Prob. 31ECh. 5 - Prob. 32ECh. 5 - Prob. 33ECh. 5 - Prob. 34ECh. 5 - Prob. 35ECh. 5 - Prob. 36ECh. 5 - Compute the work done by the variable force in the...Ch. 5 - Prob. 38ECh. 5 - Prob. 39ECh. 5 - The floor of the basement of a house is 3.0 m...Ch. 5 - A 0.50-kg mass is placed on the end of a vertical...Ch. 5 - Prob. 42ECh. 5 - A student has six textbooks, each with a thickness...Ch. 5 - A 1.50-kg mass is placed on the end of a spring...Ch. 5 - Suppose the simple pendulum in Exercise 54 were...Ch. 5 - Prob. 46ECh. 5 - Prob. 47ECh. 5 - Prob. 48ECh. 5 - A 1.00-kg block (M) is on a flat frictionless...Ch. 5 - Prob. 50ECh. 5 - A 0.20-kg rubber ball is dropped from a height of...Ch. 5 - Prob. 52ECh. 5 - Prob. 53ECh. 5 - Prob. 54ECh. 5 - Suppose the simple pendulum in Exercise 54 were...Ch. 5 - A 1.5-kg box that is sliding on a frictionless...Ch. 5 - A 0.50-kg mass is suspended on a spring that...Ch. 5 - A vertical spring with a force constant of 300 N/m...Ch. 5 - A block with a mass m1 = 6.0 kg sitting on a...Ch. 5 - A hiker plans to swing on a rope across a ravine...Ch. 5 - Prob. 61ECh. 5 - Prob. 62ECh. 5 - Prob. 63ECh. 5 - Prob. 64ECh. 5 - Prob. 65ECh. 5 - A pump lifts 200 kg of water per hour a height of...Ch. 5 - Prob. 67ECh. 5 - Prob. 68ECh. 5 - Prob. 69ECh. 5 - How much power must you exert to horizontally drag...Ch. 5 - Prob. 71ECh. 5 - Prob. 72ECh. 5 - Prob. 73ECh. 5 - Prob. 74ECh. 5 - A 200-g ball is launched from a height of 20.0 m...Ch. 5 - Prob. 76ECh. 5 - Prob. 77ECh. 5 - Prob. 78ECh. 5 - IE A 0.455-kg soccer ball is kicked off level...
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
- helparrow_forwardIf the block does reach point B, how far up the curved portion of the track does it reach, and if it does not, how far short of point B does the block come to a stop? (Enter your answer in m.)arrow_forwardTruck suspensions often have "helper springs" that engage at high loads. One such arrangement is a leaf spring with a helper coil spring mounted on the axle, as shown in the figure below. When the main leaf spring is compressed by distance yo, the helper spring engages and then helps to support any additional load. Suppose the leaf spring constant is 5.05 × 105 N/m, the helper spring constant is 3.50 × 105 N/m, and y = 0.500 m. Truck body yo Main leaf spring -"Helper" spring Axle (a) What is the compression of the leaf spring for a load of 6.00 × 105 N? Your response differs from the correct answer by more than 10%. Double check your calculations. m (b) How much work is done in compressing the springs? ☑ Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. Jarrow_forward
- A spring is attached to an inclined plane as shown in the figure. A block of mass m = 2.71 kg is placed on the incline at a distance d = 0.285 m along the incline from the end of the spring. The block is given a quick shove and moves down the incline with an initial speed v = 0.750 m/s. The incline angle is = 20.0°, the spring constant is k = 505 N/m, and we can assume the surface is frictionless. By what distance (in m) is the spring compressed when the block momentarily comes to rest? m m 0 k wwwwarrow_forwardA block of mass m = 2.50 kg situated on an incline at an angle of k=100 N/m www 50.0° is connected to a spring of negligible mass having a spring constant of 100 N/m (Fig. P8.54). The pulley and incline are frictionless. The block is released from rest with the spring initially unstretched. Ө m i (a) How far does it move down the frictionless incline before coming to rest? m (b) What is its acceleration at its lowest point? Magnitude m/s² Direction O up the incline down the inclinearrow_forward(a) A 15.0 kg block is released from rest at point A in the figure below. The track is frictionless except for the portion between points B and C, which has a length of 6.00 m. The block travels down the track, hits a spring of force constant 2,100 N/m, and compresses the spring 0.250 m from its equilibrium position before coming to rest momentarily. Determine the coefficient of kinetic friction between the block and the rough surface between points B and C. -A 3.00 m B C -6.00 m i (b) What If? The spring now expands, forcing the block back to the left. Does the block reach point B? Yes No If the block does reach point B, how far up the curved portion of the track does it reach, and if it does not, how far short of point B does the block come to a stop? (Enter your answer in m.) marrow_forward
- A ball of mass m = 1.95 kg is released from rest at a height h = 57.0 cm above a light vertical spring of force constant k as in Figure [a] shown below. The ball strikes the top of the spring and compresses it a distance d = 7.80 cm as in Figure [b] shown below. Neglecting any energy losses during the collision, find the following. т m a d T m b i (a) Find the speed of the ball just as it touches the spring. 3.34 m/s (b) Find the force constant of the spring. Your response differs from the correct answer by more than 10%. Double check your calculations. kN/marrow_forwardI need help with questions 1-10 on my solubility curve practice sheet. I tried to my best ability on the answers, however, i believe they are wrong and I would like to know which ones a wrong and just need help figuring it out.arrow_forwardQuestion: For a liquid with typical values a = 10-3K-¹ K = 10-4 bar-1 V=50 cm³ mol-1, Cp 200 J mol-1K-1, calculate the following quantities at 300 K and 1 bar for one mole of gas: 1. () P ән 2. (9) T 3. (V) T 4. (1) P 5. (9) T 6. Cv 7. (OF)Tarrow_forward
- A,B,C AND Darrow_forwardA bungee jumper plans to bungee jump from a bridge 64.0 m above the ground. He plans to use a uniform elastic cord, tied to a harness around his body, to stop his fall at a point 6.00 m above the water. Model his body as a particle and the cord as having negligible mass and obeying Hooke's law. In a preliminary test he finds that when hanging at rest from a 5.00 m length of the cord, his body weight stretches it by 1.55 m. He will drop from rest at the point where the top end of a longer section of the cord is attached to the bridge. (a) What length of cord should he use? Use subscripts 1 and 2 respectively to represent the 5.00 m test length and the actual jump length. Use Hooke's law F = KAL and the fact that the change in length AL for a given force is proportional the length L (AL = CL), to determine the force constant for the test case and for the jump case. Use conservation of mechanical energy to determine the length of the rope. m (b) What maximum acceleration will he…arrow_forward210. Sometimes the Helmholtz free energy F(T, V, N) divided by temperature, T, is an interesting quantity. For example, the quantity is proportional to the logarithm of the equilibrium constant or solubilities. A. Derive a relationship showing that Find the constant of proportionality. a F αυ ƏT T B. Suppose F(T) depends on temperature in the following way: F(T)=2aT²+bT. Find S(T) and U(T).arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
University Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSON
Introduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Lecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:9780321820464
Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON
Kinetic Energy and Potential Energy; Author: Professor Dave explains;https://www.youtube.com/watch?v=g7u6pIfUVy4;License: Standard YouTube License, CC-BY