Solutions for Conceptual Physics (12th Edition)
Problem 1RCQ:
When is energy most evident?Problem 2RCQ:
A force sets an object in motion. When the force is multiplied by the time of its application, we...Problem 3RCQ:
Cite an example in which a force is exerted on an object without doing work on the object.Problem 5RCQ:
Exactly what is it that enables an object to do work?Problem 6RCQ:
If both sacks in the preceding question are lifted their respective distances in the same time, how...Problem 7RCQ:
A car is raised a certain distance in a service-station lift and therefore has potential energy...Problem 8RCQ:
Two cars are raised to the same elevation on service- station lifts. If one car is twice as massive...Problem 9RCQ:
When is the potential energy of something significant?Problem 11RCQ:
11. Compared with a car moving at some original speed, how much work must the brakes of a car...Problem 12RCQ:
If you push a crate horizontally with 100 N across a 10-m factory floor and the friction between the...Problem 14RCQ:
14. What will be the kinetic energy of a pile driver ram that starts from rest and undergoes a 10-kJ...Problem 15RCQ:
An apple hanging from a limb has potential energy because of its height. If it falls, what becomes...Problem 16RCQ:
16. What is the source of energy in sunshine?
Problem 18RCQ:
18. Can a machine multiply input force? Input distance? Input energy? (If your three answers are the...Problem 19RCQ:
19. If a machine multiplies force by a factor of 4, what other quantity is diminished, and by how...Problem 20RCQ:
20. A force of 50 N is applied to the end of a lever, which is moved a certain distance. If the...Problem 21RCQ:
21. What is the efficiency of a machine that miraculously converts all the input energy to useful...Problem 32RCQ:
Power = work/time: P = W / t 32. Show that 50 W of power is required to give a brick 100 J of PE in...Problem 33RCQ:
33. Show that about 786 W of power is expended when 500-N barbell is lifted 2.2 m above the floor...Problem 35RCQ:
35. Show that the gravitational potential energy of a 1000-kg boulder raised 5 m above ground level...Problem 36RCQ:
Kinetic energy= 1 2 mass X speed : KE= 1 2 m v 2 36. Show that the kinetic energy of a 1.0-kg book...Problem 38RCQ:
Work-energy theorem: Work = KE
38. Show that 24 J of work is done when a 3.0-kg block of...Problem 39RCQ:
39. Show that a 2,500,000-J change in kinetic energy occurs for an airplane that is moved 500 m in...Problem 42RCQ:
42. (a) How much work is done when you push a crate horizontally with 100 N across a 10-m factory...Problem 43RCQ:
43. This question is typical on some driver’s license exams: A car that was moving at 50 km/h skids...Problem 44RCQ:
Belly-flop Bernie dives from atop a tall flagpole into a swimming pool below. His potential energy...Problem 45RCQ:
Nellie Newton applies a force of 50 N to the end of a lever, which is moved a certain distance. If...Problem 46RCQ:
46. Consider an ideal pulley system. If you pull one end of the rope 1 m downward with a 50-N force,...Problem 47RCQ:
47. In raising a 5000-N piano with a pulley system, the workers note that for every 2 m of rope...Problem 48RCQ:
48. In the hydraulic machine shown, you observe that when the small piston is pushed down 10 cm, the...Problem 49RCQ:
49. How many watts of power do you expend when you exert a force of 50 N that moves a crate 8 m in a...Problem 50RCQ:
Emily holds a banana of mass m over the edge of a bridge of height h. She drops the banana and it...Problem 51RCQ:
51. The mass and speed of the three vehicles, A, B, and C, are shown. Rank them from greatest to...Problem 52RCQ:
52. A ball is released from rest at the left of the metal track shown here. Assume it has only...Problem 53RCQ:
53. The roller coaster ride starts from rest at point A. Rank these quantities from greatest to...Problem 56RCQ:
Why do you do no work on a 25-kg backpack when you walk a horizontal distance of 100 m?Problem 57RCQ:
If your friend pushes a lawnmower four times as far as you do while exerting only half the force,...Problem 58RCQ:
Why does one get tired pushing against a stationary wall when no work is done on the wall?Problem 62RCQ:
When a rifle with a longer barrel is fired, the force of expanding gases acts on the bullet for a...Problem 64RCQ:
64. You and a flight attendant toss a ball back and forth in an airplane in flight. Does the KE of...Problem 69RCQ:
69. A physics instructor demonstrates energy conservation by releasing a heavy pendulum bob, as...Problem 72RCQ:
72. A moving hammer hits a nail and drives it into a wall.
If the hammer hits the nail with twice...Problem 74RCQ:
74. Why does the force of gravity do work on a car that rolls down a hill but no work when it rolls...Problem 86RCQ:
When the velocity of an object is doubled, by what factor is its momentum changed? By what factor is...Problem 91RCQ:
91. If two objects have equal kinetic energies, do they necessarily have the same momentum? Defend...Problem 92RCQ:
92. Two lumps of clay with equal and opposite momenta have a head-on collision and come to rest. Is...Problem 93RCQ:
Scissors for cutting paper have long blades and short handles, whereas metal-cutting shears have...Problem 100RCQ:
100. Consider the identical balls released from rest on tracks A and B, as shown. When they reach...Problem 109RCQ:
109. Your discussion partner is confused about ideas discussed in Chapter 4 that seem to contradict...Problem 110RCQ:
110. In the absence of air resistance, a ball thrown vertically upward with a certain initial KE...Problem 111RCQ:
111. You’re on a rooftop and you throw one ball downward to the ground below and another upward. The...Problem 112RCQ:
112. In the pulley system shown, block A has a mass of 10 kg and is suspended precariously at rest....Problem 118RCQ:
118. Consider a bob attached by a string, a simple pendulum, that swings to and fro.
(a) Why...Problem 119RCQ:
Consider a satellite in a circular orbit above Earth s surface. In Chapter 10 we will learn that the...Problem 120RCQ:
120. Consider the swinging-balls apparatus. If two balls are lifted and released, momentum is...Browse All Chapters of This Textbook
Chapter 1 - About ScienceChapter 2 - Newton's First Law Of Motion - InertiaChapter 3 - Linear MotionChapter 4 - Newton's Second Law Of MotionChapter 5 - Newton's Third Law Of MotionChapter 6 - MomentumChapter 7 - EnergyChapter 8 - Rotational MotionChapter 9 - GravityChapter 10 - Projectile And Satellite Motion
Chapter P1 - MechanicsChapter 11 - The Atomic Nature Of MatterChapter 12 - SolidsChapter 13 - LiquidsChapter 14 - GasesChapter P2 - Properties Of MatterChapter 15 - Temperature, Heat And ExpansionChapter 16 - Heat TransferChapter 17 - Change Of PhaseChapter 18 - ThermodynamicsChapter P3 - HeatChapter 19 - Vibration And WavesChapter 20 - SoundChapter 21 - Musical SoundsChapter P4 - SoundChapter 22 - ElectrostatisticsChapter 23 - Electric CurrentChapter 24 - MagnetismChapter 25 - Electromagnetic InductionChapter P5 - Electricity And MagnetismChapter 26 - Properties Of LightChapter 27 - ColorChapter 28 - Reflection And RefractionChapter 29 - Light WavesChapter 30 - Light EmmissionChapter P6 - LightChapter 31 - Light QuantaChapter 32 - The Atom And The QuantumChapter 33 - The Atomic Nucleus And RadioactivityChapter 34 - Nuclear Fission And FusionChapter P7 - Atomics And Nuclear PhysicsChapter 35 - Special Theory Of RelativityChapter 36 - General Theory Of RelativityChapter P8 - Relativity
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MasteringPhysicsis not a self-paced technology and should only be purchased when required by an instructor.
Conceptual Physics with MasteringPhysics , Twelfth Edition Paul Hewitt integrates a compelling text and the most advanced media to make physics interesting, understandable, and relevant for non-science majors. The Twelfth Edition will delight you with informative and fun Hewitt-Drew-It screencasts, updated content, applications, and new learning activities in MasteringPhysics.
Hewitt’s text is guided by the principle of "concepts before calculations" is famous for engaging students with analogies and imagery from the real-world that build a strong conceptual understanding of physical principles ranging from classical mechanics to modern physics.
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Sample Solutions for this Textbook
We offer sample solutions for Conceptual Physics (12th Edition) homework problems. See examples below:
Science is an ongoing human activity that represents collective efforts, findings, and wisdom of...Chapter 2, Problem 1RCQChapter 3, Problem 1RCQChapter 4, Problem 1RCQChapter 5, Problem 1RCQChapter 6, Problem 1RCQChapter 7, Problem 1RCQChapter 8, Problem 1RCQTwo bodies attract each other in this universe and magnitude of the force is directly proportional...
An object thrown into space with some initial velocity and then allowed to act upon by the forces of...Science is nothing but study of natural phenomenon. Nature has an exact correlation between all its...The idea that matter is composed of atoms was proposed by Democritus, pre-Socratic Greek...The Crystalline substance has some particular arrangement of atoms and molecules that imparts a...The pressure is given by the relation P=FA Here, F is force P is pressure A is area The relation...The gases are continuously roaming in the atmosphere, the ultimate source of energy for all the...Given Two protons and two neutrons are removed from the nucleus of neon-20. Formula used: A=Z+N...The freezing point of water is the temperature at which the water is converted from liquid state to...Chapter 16, Problem 1RCQSolids: Solids have definite shape and size. In solids the intermolecular forces between the atoms...Thermodynamics is the branch of physics that deals with the relationships between heat and other...Temperature determines hotness or coldness of an object or surrounding.All particles within the...A wiggle is described as a to and fro or back and forth movement. So, a wiggle in time or a...Sound is a form of energy only. Sound waves are longitudinal waves having some frequency and...White noise can be described by a flat power spectrum {p(f) = constant},where p(f) is the spectral...Swinging can be compared with the motion of a simple pendulum. The time is taken for a pendulum...Electrostatics (means static electricity) which is defined as follows: “Electrostatic is a branch of...The heat will flow from one object to another only where there is a temperature difference between...In 1820, a Danish physicist Hans Christian Oersted was delivering a lecture on the possibility of...Discovery of electromagnetic induction is one of the greatest scientific achievements of all time...The electrical force between an electron and a proton depends on the magnitude of the charge of each...When magnetic flux linked with a coil is changed an emf is induced. Magnetic flux is the product of...The narrow band of visible light spectrum is detectable by human eye. The wavelength of the visible...When light with a certain frequency is incident on an object it can be absorbed, reflected or...Huygens gave a principle through which we can imagine or geometrically construct the position of a...When the electrons are vibrated for a certain span, some waves are generated. The frequency range of...From the given option, all the waves (light, radio, and X- rays) except sound waves can travel...Given information: There are two theories of light- particle theory and wave theory. Thomas Young...Most of the atoms have empty space inside them. The radius of an atom is about 100000 times greater...In year 1895, when German scientist Rontgen passes the cathode ray beam striking a glass surface, he...In uranium mines, U-235 present in the ore is very less. Only 0.7% of the total uranium present....In an atom there are electrons, protons and neutrons. Neutrons and protons of an atom are normally...Given: Your speed, v1=1 km/hr Speed of train, v2=−60 km/hr (−ve sign is for opposite direction)...Special relativitytheoryEinstein’s special relativitytheory describes the effects of the fact that...In 4D reality, Space-Time is consisting of 3D (Length, Width and Height/Depth) and Time coordinates...
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