
COLLEGE PHYSICS:VOL.1
2nd Edition
ISBN: 9780134862897
Author: ETKINA
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 6, Problem 31P
To determine
The state of the cart, that is, whether it remains stationary or starts moving when a ball falls vertically on the incline, which is at rest. The ball is covered with the hook side of the Velcro and the incline, with the loop side of the Velcro, due to which, the ball sticks to the incline. Also, represent the process with impulse-momentum bar charts.
Expert Solution & Answer

Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Consider a image that is located 30 cm in front of a lens. It forms an upright image 7.5 cm from the lens. Theillumination is so bright that that a faint inverted image, due to reflection off the front of the lens, is observedat 6.0 cm on the incident side of the lens. The lens is then turned around. Then it is observed that the faint,inverted image is now 10 cm on the incident side of the lens.What is the index of refraction of the lens?
2. In class, we discussed several different flow scenarios for which we can make enough
assumptions to simplify the Navier-Stokes equations enough to solve them and obtain
an exact solution. Consulting the cylindrical form of the Navier-Stokes equations copied
below, please answer the following questions.
др
a
1 a
+
+0x-
+
+O₂
= Pgr
+ μl
18²v, 2 ave ²v₁]
az2
+
at
or
r de r
Əz
dr
ar
Vodvz
др
[18
+
+
+Or
+
+Vz
= Pgz
+fl
at
ar
r 20
ôz
ôz
dr
ave
дов
V,Ve
ave
+Or
+
+
= pge
at
dr r 80
Əz
+
az2
a.) In class, we discussed how the Navier-Stokes equations are an embodiment of Newton's
2nd law, F = ma (where bolded terms are vectors). Name the 3 forces that we are considering in
our analysis of fluid flow for this class.
др a 10
1 ve 2 av 2200]
+
+μ
or
42 30
b.) If we make the assumption that flow is "fully developed" in the z direction, which term(s)
would go to zero? Write the term below, describe what the term means in simple language (i.e.
do not simply state "it is the derivative of a with…
1. Consult the form of the x-direction Navier-Stokes equation below that we discussed in
class. (For this problem, only the x direction equation is shown for simplicity). Note that
the equation provided is for a Cartesian coordinate system. In the spaces below, indicate
which of the following assumptions would allow you to eliminate a term from the
equation. If one of the assumptions provided would not allow you to eliminate a
particular term, write "none" in the space provided.
du
ди
at
( + + + 매일)
du
ди
=
-
Pgx
dy
др
dx
²u
Fu
u
+ fl
+
ax2 ay²
az2
-
дх
-
Əz
1 2 3 4 5 6 7 8 9
Assumption
Flow is in the horizontal direction (e.g. patient lying
on hospital bed)
Flow is unidirectional in the x-direction
Steady flow
We consider the flow to be between two flat,
infinitely wide plates
There is no pressure gradient
Flow is axisymmetric
Term(s) in equation
Chapter 6 Solutions
COLLEGE PHYSICS:VOL.1
Ch. 6 - Review Question 6.1 When you burn a log in a fire...Ch. 6 - Review Question 6.2 Ryan says, “Based on the...Ch. 6 - Review Question 6.3 An apple is falling from a...Ch. 6 - Review Question 6.4 If in solving the problem in...Ch. 6 - Review Question 6.5 As the bullet enters the block...Ch. 6 - Review Question 6.6 The following equation is a...Ch. 6 - Review Question 6.7 Object A, moving in the...Ch. 6 - The gravitational force that Earth exerts on an...Ch. 6 - A bullet fired at a door makes a hole in the door...Ch. 6 - How would you convince somebody that the momentum...
Ch. 6 - 4. A wagon full of medicine balls is rolling along...Ch. 6 - 5. When can you apply the idea that momentum is...Ch. 6 - 6. Choose an example in which the momentum of a...Ch. 6 - Figure Q6.7 shows the velocity-versus-time graphs...Ch. 6 - Which is a safer car bumper in a collision: one...Ch. 6 - 9. Why does an inflated balloon shoot across a...Ch. 6 - In which situation does the momentum of a tennis...Ch. 6 - 11. A toy car with very low friction wheels and...Ch. 6 - You hold a clay ball above a scale and then drop...Ch. 6 - 13. You hold a rubber ball above a scale and then...Ch. 6 - 14 Two battery-powered fan carts are resting on a...Ch. 6 - 15. According to a report on traumatic brain...Ch. 6 - 16. Jim says that momentum is not a conserved...Ch. 6 - Say five important things about momentum (for...Ch. 6 - Three people are observing the same car. One...Ch. 6 - When would a ball hitting a wall have a greater...Ch. 6 - 20. In the previous question, in which case does...Ch. 6 - 21. Explain the difference between the concepts of...Ch. 6 - Why do you believe that momentum is a conserved...Ch. 6 - A heavy bar falls straight down onto the bed of a...Ch. 6 - Construct impulse-momentum bar charts to represent...Ch. 6 - A person moving on Rollerblades throws a medicine...Ch. 6 - A small ball of mass m rolls at a constant speed v...Ch. 6 - 1. You and a friend are playing tennis. (a) What...Ch. 6 - 2. You are hitting a tennis ball against a wall....Ch. 6 - A ball of mass m and speed v travels horizontally,...Ch. 6 - Figure P6.4 shows the velocity-versus-time graph...Ch. 6 - 5. A 1300-kg car is traveling at a speed of 10 m/s...Ch. 6 - * The rules of tennis specify that the 0.057-kg...Ch. 6 - * A cart of mass m moving right at speed v with...Ch. 6 - 8. * A cart of mass m moving right collides with...Ch. 6 - ESTEstimate your momentum when you are walking at...Ch. 6 - 10. A 100-g apple is falling from a tree. What is...Ch. 6 - * The same 100-g apple is falling from the tree....Ch. 6 - 12. Why does Earth exert the same impulse during...Ch. 6 - 13. * Van hits concrete support In a crash test, a...Ch. 6 - BIO Force exerted by heart on blood About 80 g of...Ch. 6 - 15. The train tracks on which a train travels...Ch. 6 - 16. ** EST Your friend is catching a falling...Ch. 6 - 17 BIO Traumatic brain injury According to a...Ch. 6 - * A 65-kg astronaut pushes against the inside back...Ch. 6 - 19. * You decide to use your garden hose to wash...Ch. 6 - 20. * An egg rolls off a kitchen counter and...Ch. 6 - 21. ** Proportional reasoning During a collision...Ch. 6 - (a) What force is required to stop a 1500-kg car...Ch. 6 - 23. ** EST You drop a 78-g ball vertically onto a...Ch. 6 - * Air bag force on head The graph in Figure P6.24...Ch. 6 - 25. * Equation Jeopardy 1 Invent a problem for...Ch. 6 - * Equation Jeopardy 2 Invent a problem for which...Ch. 6 - * Two carts (100 g and 150 g) on an air track are...Ch. 6 - * A tennis ball of mass m hits a wall at speed v...Ch. 6 - 29. * A tennis ball traveling at a speed of v...Ch. 6 - Prob. 30PCh. 6 - Prob. 31PCh. 6 - * You hold a beach ball above your head and then...Ch. 6 - 33. * A basketball player drops a 0.60-kg...Ch. 6 - * Bar chart Jeopardy Invent a problem for each of...Ch. 6 - * A baseball bat contacts a 0.145-kg baseball for...Ch. 6 - A cannon mounted on the back of a ship fires a...Ch. 6 - A 10-kg sled carrying a 30-kg child glides on a...Ch. 6 - 38. A 10,000-kg coal car on the Great Northern...Ch. 6 - * Avoiding chest injury A person in a car during a...Ch. 6 - * Bruising apples An apple bruises if a force...Ch. 6 - * Fast tennis serve The fastest server in womens...Ch. 6 - 42. * You are in an elevator whose cable has just...Ch. 6 - ** You jump from the window of a burning hotel and...Ch. 6 - * After a 70-kg person steps from a boat onto the...Ch. 6 - 45. * BIO Leg injuries during car collisions...Ch. 6 - 46. * BIO Bone fracture The zygomatic bone in the...Ch. 6 - 47. ** You are investigating a newly discovered...Ch. 6 - 48. * An impulse of stops your head during a car...Ch. 6 - A cart is moving on a horizontal track when a...Ch. 6 - 50. * A cart is moving on a horizontal track. A...Ch. 6 - 51. Your friend shoots an 80-g arrow through a...Ch. 6 - 52. * BIO EST Cuttlefish use jet propulsion to...Ch. 6 - * BIO Potassium decay in body tissue Certain...Ch. 6 - 54. Drifting space mechanic An astronaut with a...Ch. 6 - Prob. 55PCh. 6 - 56. Rocket stages A 5000-kg rocket ejects a...Ch. 6 - 57. * A rocket has just ejected fuel. With the...Ch. 6 - 58. * Car collision A 1180-kg car traveling south...Ch. 6 - 59. * Ice skaters collide While ice skating, you...Ch. 6 - 1015-kg meteorite traveling at about 10 km/s...Ch. 6 - 61. * Three friends play beach volleyball. The...Ch. 6 - 62. ** Two forces exert impulses on a hockey puck,...Ch. 6 - 64. * A cart of mass m traveling in the negative...Ch. 6 - 65. ** Two cars of unequal mass moving at the same...Ch. 6 - 66. ** Restraining force during collision A...Ch. 6 - * EST A carpenter hammers a nail using a 0.80-kg...Ch. 6 - 68. ** A 0.020-kg bullet traveling at a speed of...Ch. 6 - 69. * Two identical lightweight arms are mounted...Ch. 6 - * In a first experiment, a 30-g clay ball is shot...Ch. 6 - 71. ** EST A record rainstorm produced 304.8 mm...Ch. 6 - 72. * While dangling a hairdryer by its cord, as...Ch. 6 - 73. ** While dangling a hairdryer by its cord, as...Ch. 6 - Prob. 74GPCh. 6 - 75. * A 2045-kg sports utility vehicle hits the...Ch. 6 - 76. ** A car of mass m1 traveling north at a speed...Ch. 6 - ** You have two carts, a force probe connected to...Ch. 6 - BIO Heartbeat detector A prisoner tries to escape...Ch. 6 - BIO Heartbeat detector A prisoner tries to escape...Ch. 6 - BIO Heartbeat detector A prisoner tries to escape...Ch. 6 - BIO Heartbeat detector A prisoner tries to escape...Ch. 6 - BIO Heartbeat detector A prisoner tries to escape...Ch. 6 - Space Shuttle launch The mass of the Space Shuttle...Ch. 6 - Space Shuttle launch The mass of the Space Shuttle...Ch. 6 - Space Shuttle launch The mass of the Space Shuttle...Ch. 6 - Space Shuttle launch The mass of the Space Shuttle...Ch. 6 - Space Shuttle launch The mass of the Space Shuttle...Ch. 6 - Space Shuttle launch The mass of the Space Shuttle...Ch. 6 - Space Shuttle launch The mass of the Space Shuttle...
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
- Don't use ai to answer I will report you answerarrow_forwardwhy did the expert subtract the force exerted by the hand and the elbow by the force due to the weight of the hand and forearm and force exerted by the tricep. Does the order matter and how do you determine what to put first. Question 4 AP, CHAPTER 13 FROM BASIC BIOMECHANICS 8TH EDITIONarrow_forwardThe drawing illustrates the dispersion of light by a prism. The prism is made from a certain type of glass, and has a cross section shaped like an equilateral triangle. The indices of refraction for the red and violet light in this type of glass are 1.649 and 1.694, respectively. The angle of incidence for both the red and violet light is 60.0°. Find the angles of refraction at which the (a) red and (b) violet rays emerge into the air from the prism. Glass prism Incident light Normal (a) Normal Incident light Red (660 nm) (b) Violet (410 nm)arrow_forward
- Don't use ai to answer I will report you answerarrow_forwardA glass block (n = 1.56) is immersed in a liquid. A ray of light within the glass hits a glass- liquid surface at a 70.0° angle of incidence. Some of the light enters the liquid. What is the smallest possible refractive index for the liquid?arrow_forwardThe drawing shows a crystalline slab (refractive index 1.995) with a rectangular cross section. A ray of light strikes the slab at an incident angle of 01 = 35.0°, enters the slab, and travels to point P. This slab is surrounded by a fluid with a refractive index n. What is the maximum value of n such that total internal reflection occurs at point P? Ме Buarrow_forward
- What is the amount of M112 needed to breach a 5-foot thick dense concrete wall utilizing an internal charge placed in the center of the target?arrow_forwardA small postage stamp is placed in front of a concave mirror (radius = 1.1 m), such that the image distance equals the object distance. (a) What is the object distance? (b) What is the magnification of the mirror (with the proper sign)?arrow_forwardCalculate the anti-clockwise torque and the clockwise torque of the system with the ruler and the washers. Record these values in Data Table 5. Ruler = 11.56 g, small washer = 1.85 g, large washer = 24.30 g. Calculate the % Difference in the Torques and record the values in Data Table 5. Is ΣAnticlockwise torque and Anticlockwise torque the same thing, are they solved in the same way?arrow_forward
- A window washer stands on a uniform plank of mass M = 142 kg and length l = 2.80 m supported by 2 ropes attached at the ends of the plank. The window washer has a mass m = 68.0 kg. What is the tension in each of the ropes, T1 and T2, if the window washer's displacement from the center of mass of the plank is x = 0.930 m as shown in Figure 1: Window Washer Problem?arrow_forwardA man holds a double-sided spherical mirror so that he is looking directly into its convex surface, 33 cm from his face. The magnification of the image of his face is +0.17. What will be the image distance when he reverses the mirror (looking into its concave surface), maintaining the same distance between the mirror and his face? Be sure to include the algebraic sign (+ or -) with your answer.arrow_forwardHow do you draw a diagram of the ruler and mass system in equilibrium identifying the anti-clockwise torque and clockwise torque? How do I calculate the anti-clockwise torque and the clockwise torque of the system with the ruler and the washers, does it come from the data in table 4? Please help, thank you!arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPrinciples 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 LearningGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill

Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning

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

Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill