Pearson eText for College Physics: Expl...2nd EditionEugenia Etkina, Gorazd Planinsic Publisher: PEARSON+ISBN: 9780137443000
Pearson eText for College Physics: Expl...
Solutions for Pearson eText for College Physics: Explore and Apply -- Instant Access (Pearson+)
Problem 1RQ:
Review Question 9.1 Visualize an ice skater rotating faster and faster in a clockwise direction What...Problem 2RQ:
Review Question 9.2 A solid wooden ball and a smaller solid metal ball have equal mass (the metal...Problem 3RQ:
Review Question 9.3 How is Newton’s second law for rotational motion similar to Newton's second law...Problem 4RQ:
Review Question 9.4 After a playground merry-go-round is set in motion, its rotational speed...Problem 5RQ:
Review Question 9.5 Will a can of watery chicken noodle soup roll slower or raster down an inclined...Problem 1MCQ:
Is it easier to open a door that is made of a solid piece of wood of the same mass made of light...Problem 2MCQ:
2. You push a child on a swing. Why doesn’t the child continue in a vertical loop over the top of...Problem 3MCQ:
In terms of the torque needed to rotate your leg as you run, would it be better to have a long calf...Problem 4MCQ:
Suppose that two bicycles have equal overall mass, but one has thin lightweight tires while the...Problem 5MCQ:
When riding a 10-speed bicycle up a hill, a cyclist shifts the chain to a larger-diameter gear...Problem 6MCQ:
6 The objects in Figure Q9.6 are made or two identical paper cups glued together Rank the...Problem 7MCQ:
7. Select all the pairs below in which the two physical quantities have the same units.
a....Problem 8MCQ:
If you turn on a coffee grinding machine sitting on a smooth tabletop, what do you expect it to do?...Problem 9MCQ:
A bowling ball is rolling without skidding down an incline. While accelerating down the incline, the...Problem 10MCQ:
10. The Mississippi River carries sediment from higher latitudes towards the equator. How does this...Problem 11MCQ:
Two disks are cut from the same uniform board. The radius of disk B is twice the radius of the disk...Problem 13CQ:
A spinning raw egg, if stopped momentarily and men released by the fingers, will resume spinning....Problem 14CQ:
Compare the magnitude of Earth's rotational momentum about its axis to that of the Moon about Earth....Problem 15CQ:
You lay a pencil on a smooth desk (ignore sliding friction). You push the pencil, exerting a...Problem 16CQ:
If you watch the dive of an Olympic diver, you note that she continues to rotate after leaving the...Problem 17CQ:
17. Explain why you do not tip over when riding a bicycle but do tip when stationary at a...Problem 19CQ:
19. Why do tightrope walkers carry long, heavy bars?
Problem 1P:
The sweeping second hand on your wall clock is 20 cm long. What is (a) the rotational speed of the...Problem 2P:
2. You find an old record player in your attic. The tumtable has two readings: 33 rpm and 45 rpm....Problem 3P:
3. * Consider again the turntable described in the last problem. Determine the magnitudes of the...Problem 4P:
4. You step on the gas pedal in your car, and the car engine’s rotational speed changes from 1200...Problem 5P:
You pull your car into your driveway and stop. The drive shaft of your car engine, initially...Problem 6P:
6. An old wheat-grinding wheel in a museum actually works. The sign on the wall says that the wheel...Problem 7P:
Centrifuge A centrifuge at the same museum is used to separate seeds of different sizes. The average...Problem 8P:
Potters wheel A fly sits on a potters wheel 0.30 m from its axle. The wheels rotational speed...Problem 9P:
9. * During your tennis serve, your racket and arm move in an approximately rigid arc with the top...Problem 10P:
10. * An ant clings to the outside edge of the tire of an exercise bicycle. When you start pedaling...Problem 11P:
11. * The speedometer on a bicycle indicates that you travel 60 m while your speed increases from 0...Problem 12P:
* You pedal your bicycle so that its wheel's rotational speed charges from 5.0 rad/s to 8.0 rad/s in...Problem 13P:
Mileage gauge The odometer on an automobile actually counts axle turns and converts the number of...Problem 14P:
*Speedomter The speedometer on an automobile measures the rotational speed of the axie and converts...Problem 15P:
15 * Ferns wheel A Ferris wheel starts at rest, acquires a rotational velocity of w rad/s after...Problem 16P:
16. * You push a disk-shaped platform tangentially on its edge 2.0 m from the axle. The platform...Problem 17P:
s rotational acceleration would be in ran/s2 if the length of a day increased from 24 h to 48 h...Problem 18P:
18. A 0.30-kg ball is attached at the end or a 0.90-m-long stick. The ball and stick rotate in a...Problem 19P:
19. Centrifuge A centrifuge with a rotational inertia has a rotational acceleration of when the...Problem 20P:
Airplane turbine what is the average torque needed to accelerate the turbine of a jet engine from...Problem 21P:
* A turntable turn ng at rotational speed 33 rpm stops in 50 s when turned off. The turntable's...Problem 22P:
22. * The solid pulley in Figure P9.22 consists of a two-part disk, which initially rotates...Problem 23P:
* The pulley shown in Figure P9.22 is initially totaling clockwise. Compare the forces exerted by...Problem 24P:
The pulley shown in Figure P9.22 is initially rotating in the clockwise direction. The force that...Problem 28P:
28. Derive an expression Tor the rotational inertia of the four balls shown in Figure P9.28 about...Problem 31P:
31. * Merry-go-round A mechanic needs to replace the motor for a merry-go-round. What torque...Problem 32P:
32. * A small 0.80-kg train propelled by a fan engine starts at rest and goes around a circular...Problem 33P:
* Motor You wish to buy a motor that will be used to lift a 20-kg bundle of shingles from the ground...Problem 34P:
34. ** A string wraps around a 6.0-kg wheel of radius 0.20 m. The wheel is mounted on a frictionless...Problem 35P:
* Elena, a black belt in tae kwon do, is experienced in breaking boards with her fist. A high-speed...Problem 37P:
37. * Fire escape A unique fire escape for a three-story house is shown in Figure P9.37 . A 30-kg...Problem 38P:
38. ** An Atwood machine is shown in Example 9.4 . Use . (a) Construct separate force diagrams for...Problem 39P:
onTruckandF2onbucket that the rope exerts on the truck and that the rope exerts on the bucket. (c)...Problem 40P:
* A thin rod of length L and mass m rotates around an axis perpendicular to the rod. passing through...Problem 41P:
41. * (a) Determine the rotaticnal momentum o’ a 10-kg disk-shaped flywheel of radius 9.0 cm...Problem 42P:
Ballet A ballet student with her arms and a leg extended spins with an initial rotational speed of...Problem 43P:
* A 0.20-kg block moves at the end of a 0.50-m string along a circular path on a frictionless air...Problem 44P:
* Puck on a string You attach a 100-g puck to a string and let the puck glide in a circle on a...Problem 46P:
0. The student then turns the bicycle wheel over (that is, through 180). Estimate, in terms of 0,...Problem 47P:
47. Neutron star An extremely dense neutron star with mass equal to that of the Sun has a radius of...Problem 48P:
48. * A boy of mass m is standing on the edge of a merry-go-round platform, which is initially...Problem 50P:
50. A grinding wheel with rotational inertia I gains rotational kinetic energy K after starting from...Problem 51P:
* The rotational speed of a flywheel increases by 40%. By what percent does its rotational kinetic...Problem 52P:
B,/KrotA.Problem 53P:
* Flywheel energy for car The U.S. Department of Energy had plans for a 1500-kg automobile to be...Problem 54P:
* Flywheel energy Engineers at the University of Texas at Austin are developing an Advanced...Problem 56P:
56. ** Rotating student A student sitting on a chair on a circular platform of negligible mass...Problem 57P:
* A turntable whose rotational inertia is 1.0103kgm2 rotates on a frictionless air cushion at a...Problem 58P:
58. **Repeat the previous problem, only assume that the beetle initially falls on the edge of the...Problem 60P:
* Merry-go-round A carnival merry-go-round has a large disk-shaped platform of mass 120 kg that can...Problem 61P:
*Est You hold an apple by its stem between your thumb and index finger and spin it so that the apple...Problem 62GP:
* Stopping Earths rotation Suppose that Superman wants to stop Earth so it does not rotate. He...Problem 63GP:
BIO EST Punting a football Estimate the tangential acceleration of the foot and the rotational...Problem 65GP:
* BIO Triceps and darts Your upper arm is horizontal and your forearm is vertical with a 0.010-kg...Problem 66GP:
66. * BIO Bowling At the start of your throw of a 2.7-kg bowling ball, your arwm is straight behind...Problem 67GP:
67. ** Bio Leg lift You are doing one-leg leg lifts (Figure P9.67) and decide to estimate the force...Problem 68GP:
* A horizontal, circular platform can rotate around a vertical axis at its center with negligible...Problem 69GP:
69. * You have an empty cylindrical metal can and two metal nuts. In your first experiment, you spin...Problem 70GP:
** in the previous problem, each nut has a mass of 8.0 g. The distances between the centers of mass...Problem 71GP:
71. * Superball If you give a superball backspin and throw it toward a horizontal floor, it is...Problem 73GP:
73. * EST White dwarf A star the size of our Sun runs out of nuclear fuel and. without losing mass,...Problem 78RPP:
Tidal energy Tides are now used so gene-ate electric power in two ways. In the first, huge dams can...Problem 79RPP:
Tidal energy Tides are now used so gene-ate electric power in two ways. In the first, huge dams can...Problem 80RPP:
Tidal energy Tides are now used so gene-ate electric power in two ways. In the first, huge dams can...Problem 81RPP:
Tidal energy Tides are now used so gene-ate electric power in two ways. In the first, huge dams can...Browse All Chapters of This Textbook
Chapter 2 - Kinematics: Motion In One DimensionChapter 3 - Newtonian MechanicsChapter 4 - Applying Newton’s LawsChapter 5 - Circular MotionChapter 6 - Impulse And Linear MomentumChapter 7 - Work And EnergyChapter 8 - Extended Bodies At RestChapter 9 - Rotational MotionChapter 10 - Vibrational MotionChapter 11 - Mechanical Waves
Chapter 12 - GasesChapter 13 - Static FluidsChapter 14 - Fluids In MotionChapter 15 - First Law Of ThermodynamicsChapter 16 - Second Law Of ThermodynamicsChapter 17 - Electric Charge, Force, And EnergyChapter 18 - The Electric FieldChapter 19 - Dc CircuitsChapter 20 - MagnetismChapter 21 - Electromagnetic InductionChapter 22 - Reflection And RefractionChapter 23 - Mirrors And LensesChapter 24 - Wave OpticsChapter 25 - Electromagnetic WavesChapter 26 - Special RelativityChapter 27 - Quantum OpticsChapter 28 - Atomic PhysicsChapter 29 - Nuclear PhysicsChapter 30 - Particle Physics
Sample Solutions for this Textbook
We offer sample solutions for Pearson eText for College Physics: Explore and Apply -- Instant Access (Pearson+) homework problems. See examples below:
Chapter 2, Problem 1RQChapter 3, Problem 1RQChapter 4, Problem 1RQChapter 5, Problem 1RQChapter 6, Problem 1RQChapter 7, Problem 1RQIntroduction: Center of mass is a point where the complete mass of any object is said to be...Chapter 9, Problem 1RQChapter 10, Problem 1RQ
Chapter 11, Problem 1RQIntroduction: The following mechanisms can be logically constructed to understand the reason behind...Chapter 13, Problem 1RQIntroduction: Bernoulli’s principle states that fluids moving at a faster velocity have lesser...Chapter 15, Problem 1RQIntroduction: Energy of an isolated system, such as the universe always remains constant, as stated...Chapter 17, Problem 1RQChapter 18, Problem 1RQChapter 19, Problem 1RQChapter 20, Problem 1RQChapter 21, Problem 1RQIntroduction: Experimentally, it has been observed that, the projection on the wall will be upside...Chapter 23, Problem 1RQChapter 24, Problem 1RQChapter 25, Problem 1RQChapter 26, Problem 1RQIntroduction: Planck’s hypothesis stated that an accelerated charged particle can radiate an...Introduction: The Rutherford atomic model is also known as the planetary or nuclear model of an...Introduction: Rutherford, in 1899, conducted an experiment in which he set up two parallel metal...Introduction: Beta decay is referred to as the transformation of protons into neutrons and...
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