College PhysicsOER 2016 EditionOpenStax Publisher: OpenStax CollegeISBN: 9781947172173
College Physics
Solutions for College Physics
Problem 1CQ:
Describe the photo of the tea kettle at the beginning of this section in terms of heat transfer,...Problem 2CQ:
The first law of thermodynamics and the conservation of energy, as discussed in Conservation of...Problem 3CQ:
Heat transfer Q and work done W are always energy in transit, whereas internal energy U is energy...Problem 4CQ:
How do heat transfer and internal energy differ? In particular, which can be stored as such in a...Problem 5CQ:
If you run down some stairs and stop, what happens to your kinetic energy and your initial...Problem 6CQ:
Give an explanation of how food energy (calories) can be viewed as molecular potential energy...Problem 7CQ:
Identify the type of energy transferred to your body in each of the following as either internal...Problem 8CQ:
A great deal of effort time, and money has been spent in the quest for the so-called...Problem 9CQ:
One method of converting heat transfer to doing work is for heat transfer into a gas to take place,...Problem 10CQ:
Would the previous question make any sense for an isochoric process? Explain your answer.Problem 11CQ:
We ordinarily say that U=0 for an isothermal process. Does this assume no phase change takes place?...Problem 12CQ:
The temperature of a rapidly expanding gas decreases. Explain why in terms of the first law of...Problem 13CQ:
Which cyclical process represented by the two closed loops, ABCFA end ABDEA, on the PV diagram in...Problem 14CQ:
A real process may be nearly adiabatic if it occurs over a very short time. How does the short time...Problem 15CQ:
It is unlikely that a process can be isothermal unless it is a very slow process. Explain why. Is...Problem 16CQ:
Imagine you are driving a car up Pike’s Peak in Colorado. To raise a car weighing 1000 kilograms a...Problem 18CQ:
Definitions of efficiency vary depending on how energy is being converted. Compare the definitions...Problem 19CQ:
Whyother than the fact that the second law of thermodynamics says reversible engines are the most...Problem 21CQ:
Can improved engineering and materials be employed in heat engines to reduce heat transfer into the...Problem 23CQ:
Explain why heat pumps do not work as well in very cold climates as they do in milder ones. Is the...Problem 24CQ:
In some Northern European nations, homes are being built without heating systems of any type. They...Problem 25CQ:
Why do refrigerators, air conditioners, and heat pumps operate most costeffectively for cycles with...Problem 26CQ:
Grocery store managers contend that there is less total energy consumption in the summer it the...Problem 28CQ:
A woman shuts her summer cottage up in September and returns in June. No one has entered the cottage...Problem 29CQ:
Consider a system with a certain energy content, from which we wish to extract as much work as...Problem 30CQ:
Does a gas become more orderly when it liquefies? Does its entropy change? If s, does the entropy...Problem 31CQ:
Explain how water’s entropy can decrease when it freezes without violating the second law of...Problem 32CQ:
Is a uniform-temperature gas more or less orderly than one with several different temperatures?...Problem 33CQ:
Give an example of a spontaneous process in which a system becomes less ordered and energy becomes...Problem 34CQ:
What is the change in entropy in an adiabatic process? Does this imply that adiabatic processes are...Problem 35CQ:
Does the entropy at a star increase or decrease as it radiates? Does the entropy of the space into...Problem 36CQ:
Explain why a building made of bricks has smaller entropy than the same bricks in a disorganized...Problem 37CQ:
Explain why a building made of bricks has smaller entropy than the same bricks in a disorganized...Problem 1PE:
What is the change in internal energy of a car if you put 12.0 gal of gasoline into its tank? The...Problem 2PE:
How much heat transfer occurs from a system, if its internal energy decreased by 150 J while it was...Problem 3PE:
A system does 1.80108J of work while 7.50108J of heat transfer occurs to the environment. What is...Problem 4PE:
What is the change in internal energy of a system which does 4.50105J of work while 3.00106J of heat...Problem 5PE:
Suppose a woman does 500 J of work and 9500 J of heat transfer occurs into the environment in the...Problem 6PE:
(a) How much food energy will a man metabolize in the process of doing 35.0 kJ of work with an...Problem 7PE:
(a) What is the average metabolic rate in watts of a man who metabolizes 10,500 kJ of feed energy in...Problem 8PE:
(a) How long will the energy in a 1470kJ (350kcal) cup of yogurt last in a woman doing work at the...Problem 9PE:
(a) A woman climbing the Washington Monument metabolizes 6.00102kJ of food energy. If her efficiency...Problem 10PE:
A car tire contains 0.0380m3 S of air at a pressure of 2.20105N/m2 (about 32 psi). How much more...Problem 11PE:
A heliumfilled toy balloon has a gauge pressure of 0.200 atm and a volume of 10.0 L. How much...Problem 12PE:
Steam to drive an old—fashioned steam locomotive is supplied at a constant gauge pressure of...Problem 13PE:
A hand—driven tire pump has a piston with a 2.50cm diameter and a maximum stroke of 30.0 cm. (a) How...Problem 14PE:
Calculate the net work output of a heat engine following path ABCDA in the figure below.Problem 15PE:
What is the net work output of a heat engine that follows path ABBA in the figure above, with a...Problem 16PE:
Unreasonable Results What is wrong with the claim that a cyclical heat engine does 4.00 kJ of work...Problem 17PE:
(a) A cyclical heat engine, operating between temperatures of 450C and 150C produces 4.00 MJ of work...Problem 18PE:
Construct Your Own Problem Consider a car's gasoline engine. Construct a problem in which you...Problem 19PE:
Construct Your Own Problem Consider a car trip into the mountains. Construct a problem in which you...Problem 20PE:
A certain heat engine does 10.0 kJ of work and 8.50 kJ of heat transfer occurs to the environment in...Problem 21PE:
With 2.56106J of heat transfer into this engine, a given cyclical heat engine can do only 1.50105J...Problem 22PE:
(a) What is the work output of a cyclical heat engine having a 22.0% eficiency and 6.00109J of heat...Problem 23PE:
(a) What is the eficiency of a cyclical heat engine in which 75.0 kJ of heat transfer occurs to the...Problem 24PE:
The engine of a large Ship does 2.00108J of work with an eficiency of 5.00%. (a) How much heat...Problem 25PE:
(a) How much heat transfer occurs to the environment by an electrical power station that uses...Problem 26PE:
Assume that the turbines at a coal—powered power plant were upgraded, resulting in an improvement in...Problem 27PE:
This problem compares the energy output and heat transfer to the environment by two different types...Problem 28PE:
A certain gasoline engine has an efficiency of 30.0%. What would the hot reservoir temperature be...Problem 29PE:
A gascooled nuclear reactor operates between hot and cold reservoir temperatures of 700C and 27.0C....Problem 30PE:
(a) What is the hot reservoir temperature of a Carnot engine that has an eficiency of 42.0% and a...Problem 31PE:
Steam locomotives have an efficiency of 17.0% and operate with a hot steam temperature of 425C. (a)...Problem 32PE:
Practical steam engines utilize 450C steam, which is later exhausted at 270C. (a) What is the...Problem 33PE:
A coalfired electrical power station has an efficiency of 38%. The temperature of the steam leaving...Problem 34PE:
Would you be willing to financially back an inventor who is marketing a device that she claims has...Problem 35PE:
Unreasonable Results (a) Suppose you want to design a steam engine that has heat transfer to the...Problem 36PE:
Unreasonable Results Calculate the cold reservoir temperature of a steam engine that uses hot steam...Problem 37PE:
What is the coefficient of performance of an ideal heat pump that has heat transfer from a cold...Problem 38PE:
Suppose you have an ideal refrigerator that cools an environment at 20.0C and has heat transfer to...Problem 39PE:
What is the best coefficient of performance possible for a hypothetical refrigerator that could make...Problem 40PE:
In a very mild winter climate, a heat pump has heat transfer from an environment at 5.00C to one at...Problem 41PE:
(a) What is the best coefficient of performance for a heat pump that has a hot reservoir temperature...Problem 42PE:
(a) What is the best coefficient of performance for a refrigerator that cools an environment at...Problem 43PE:
Suppose you want to operate an ideal refrigerator with a cold temperature of 10.0C, and you would...Problem 44PE:
An ideal heat pump is being considered for use in heating an environment with a temperature of...Problem 45PE:
A 4ton air conditioner removes 5.60107J (48,000 British thermal units) from a cold environment in...Problem 46PE:
Show that the coefficients of performance of refrigerators and heat pumps are related by...Problem 47PE:
(a) On a winter day, a certain house loses 5.00108J of heat to the outside (about 500,000 Btu). What...Problem 48PE:
On a hot summer day, 4.00106J of heat transfer into a parked car takes place, increasing its...Problem 49PE:
A hot rock ejected from a volcano's lava fountain cools from 1100C to 40.0C, and its entropy...Problem 50PE:
When 1.60105J of heat transfer occurs into a meat pie initially at 20.0C, its entropy increases by...Problem 51PE:
The Sun radiates energy at the rate of 3.801026W from its 5500C surface into dark empty space (a...Problem 52PE:
(a) In reaching equilibrium, how much heat transfer occurs from 1.00 kg of water at 40.0C when it is...Problem 53PE:
What is the decrease in entropy of 25.0 g of water that condenses on a bathroom mirror at a...Problem 54PE:
Find the increase in entropy of 1.00 kg of liquid nitrogen that starts at its boiling temperature,...Problem 55PE:
A large electrical power station generates 1000 MW of electricity with an efficiency of 35.0%. (a)...Problem 56PE:
(a) How much heat transfer occurs from 20.0 kg of 90.0C water placed in contact with 20.0 kg of...Problem 57PE:
Using Table 15.4, verify the contention that if you toss 100 coins each second, you can expect to...Problem 58PE:
What percent of the time will you get something in the range from 60 heads and 40 tails through 40...Problem 59PE:
(a) If tossing 100 coins, how many ways (microstates) are there to get me three most likely macro...Problem 60PE:
(a) What is the change in entropy if you start with 100 coins in the 45 heads and 55 tails...Browse All Chapters of This Textbook
Chapter 1 - Introduction: The Nature Of Science And PhysicsChapter 2 - KinematicsChapter 3 - Two-dimensional KinematicsChapter 4 - Dynamics: Force And Newton's Laws Of MotionChapter 5 - Further Applications Of Newton's Laws: Friction, Drag, And ElasticityChapter 6 - Gravitation And Uniform Circular MotionChapter 7 - Work, Energy, And Energy ResourcesChapter 8 - Linear Momentum And CollisionsChapter 9 - Statics And TorqueChapter 10 - Rotational Motion And Angular Momentum
Chapter 11 - Fluid StaticsChapter 12 - Fluid Dynamics And Its Biological And Medical ApplicationsChapter 13 - Temperature, Kinetic Theory, And The Gas LawsChapter 14 - Heat And Heat Transfer MethodsChapter 15 - ThermodynamicsChapter 16 - Oscillatory Motion And WavesChapter 17 - Physics Of HearingChapter 18 - Electric Charge And Electric FieldChapter 19 - Electric Potential And Electric FieldChapter 20 - Electric Current, Resistance, And Ohm's LawChapter 21 - Circuits, Bioelectricity, And Dc InstrumentsChapter 22 - MagnetismChapter 23 - Electromagnetic Induction, Ac Circuits, And Electrical TechnologiesChapter 24 - Electromagnetic WavesChapter 25 - Geometric OpticsChapter 26 - Vision And Optical InstrumentsChapter 27 - Wave OpticsChapter 28 - Special RelativityChapter 29 - Introduction To Quantum PhysicsChapter 30 - Atomic PhysicsChapter 31 - Radioactivity And Nuclear PhysicsChapter 32 - Medical Applications Of Nuclear PhysicsChapter 33 - Particle PhysicsChapter 34 - Frontiers Of Physics
Sample Solutions for this Textbook
We offer sample solutions for College Physics homework problems. See examples below:
Chapter 1, Problem 1CQChapter 2, Problem 1CQGiven: The given figure is, Figure (1) Formula used: The velocity of particle is given as, v=ΔxΔt...Chapter 3, Problem 1CQGiven: The given table is, Height (m)Time...Chapter 4, Problem 1CQChapter 5, Problem 1CQChapter 6, Problem 1CQChapter 7, Problem 1CQ
Given: Distance traveled with rocket engine firing ( m)Payload final velocity (...Chapter 8, Problem 1CQGiven: The mass of the girl is m=40 kg. The mass of the platform is m=120 kg. The initial speed of...Introduction: An experiment can be performed in which the two carts will be placed on a straight...Given: The mass of puck A is mA=200 g. The mass of puck B is mB=800 g. Formula used: The initial...Given: Mass of A, ma=3m. Mass of B, mb=m. Velocity of mass A before collision, ua=12 m/s. Velocity...Given: Velocity of object A before collision, ua=4 m/s. Velocity of object B before collision, ub=−8...Given: The positions of two objects before and after collision are depicted in the following figure....Given: Mass of A is ma=1.0 kg. Mass of B is mb=3.0 kg. Initial velocity of mass A is ua=8 m/s....Given: Mass of A is ma=1.0 kg. Mass of B is mb=1.0 kg. Initial velocity of mass A is ua=4 m/s....Given: Let the mass of A be m1. The mass m2 of B is m2=2m1. The initial velocity of mass B is...Given: The mass A is moving in +x direction with an initial velocity, v1=15 m/s. The mass of B is,...Given: The mass of car A is, m1=2000 kg. The initial velocity of car A is, v1=38 m/s in the east...Chapter 9, Problem 1CQGiven: The mass of the bridge is, m=2500 kg. Formula used: The relation between the mass and weight...Given: The mass of the bridge is M=2500 kg. The mass of the car is m=900 kg. The distance of weight...Given: The mass of the woman is m1=50 kg. The acceleration due to gravity is g=9.8 m/s2. Formula...Given: Number of bricks in the wheel barrow is 20. Mass of each brick is 3 kg. Formula used: Write...Given: The weight of the dumbbell is w1=20 lb. Formula used: The relation between the mass and...Chapter 10, Problem 1CQChapter 11, Problem 1CQGiven info: The manometer along balloon and jar is shown below: Height of the liquid inside the...Given: Mass of brace, mb=150 kg Mass of load, ml=400 kg Formula used: The Force for the slave...Given info: The radius of volleyball increases by 10%. Formula used: Density is mass per unit volume...Given: Density of water, Volume of liquid, Formula Used: A polystyrene cube floating partially...Chapter 12, Problem 1CQGiven: Diameter of pipe =3.5cm Force= 320 N Rate of flowing water = 2.5m/s Pumped water level = 21m...Chapter 13, Problem 1CQChapter 14, Problem 1CQChapter 15, Problem 1CQChapter 16, Problem 1CQChapter 17, Problem 1CQGiven: The distance between bat and insect is 3.00 m. The temperatures at which echo times is to be...Given: Refer Table [17.8] The value of acoustic impedance of transducer material is, Zt=30.8×106...Given: The frequency of the car's horn is fhorn=200 Hz. Formula used: The expression for the...Given: The data length of an air column and a resonant frequency present when the column is struck...Chapter 18, Problem 1CQGiven: Point charges located at 1.00 cm, 5.00 cm, 8.00 cm and 14.0 cm along the x -axis. Formula...Given: Point charges located at 3.00, 8.00 and 11.0 cm along the x -axis. Formula used: Electric...Given: Four charges qa, qb, qc, qd placed at each corner of the square with side 5 cmhaving...Given: qb=+10.00μC qc=−5.00μC Side of an equilateral triangle 25.0 cm Formula used: E=Ebcosφ...Given: qa=+2.50 nC qb=−8.00 nC qc=+1.50 nC Point charges located at the corners of an equilateral...Formula used: The magnitude of the electrostatic force between two electrons isgiven by: FC=kq2r2...Introduction: The lines of forces are imaginary which signify amplitude and direction of an electric...Chapter 19, Problem 1CQGiven info: Charges q1=1 μCq2=−2 μCq3=3 μC Formula used: The potential energy is given by PE=−kq1q2d...Given: The charge of the particle is identical, that is, q=q. The impact of the second particle on...Chapter 20, Problem 1CQGiven: WireLengthDiameterWire 12m1cmWire 21m0.5 cmWire 31m1cm Formula used: Resistance in the wire...Given information: The given statement is a switch has a variable resistance that is nearly zero...Given information: The given figure is Introduction: Kirchhoff's junction rule states that the sum...Given information: The given figure is Formula used: Kirchhoff's second rule states that in a closed...Given information: The given figure is Introduction: Ammeter is connected in series in the circuit...Given information: The given figure is Introduction: Kirchhoff's second rule states that in a closed...Given information: The given figure is Concept Introduction: Kirchhoff's second rule states that in...Given information: The voltage of alkaline cell is 1.585 V. An internal resistance is 0.100Ω....Given information: Figure shows how a bleeder resistor is used to discharge a capacitor after an...Given: Parallel combination of two 20 Ω and one 10 Ω resistors is connected in series with a 4Ω...Chapter 22, Problem 1CQGiven: Current carrying wire is placed at the vertices of an equilateral triangle of side 10.0 cm=...Given: A pendulum is set up so that its bob swings between the poles of permanent magnet. Charge on...Chapter 23, Problem 1CQGiven information: An ideal step-up transformer with turn ratio 1:30 is supplied with an input power...Chapter 24, Problem 1CQChapter 25, Problem 1CQChapter 26, Problem 1CQChapter 27, Problem 1CQIntroduction: The resultant amplitude of two waves with equal amplitude is given by A2=2A12(1+cosδ)...Given: The nth -order diffraction angle for the longest wavelength is, θl1=53.13°. The longest...Chapter 28, Problem 1CQGiven: The Relativistic energy is E, Themomentum is p, The rest mass is m0 The speed of light is c....Chapter 29, Problem 1CQChapter 30, Problem 1CQGiven: The wavelength of first photon is λ1=121.6 nm. The wavelength of second photon is λ2=102.6...Given: The energy of the level 2 is E2=−3.4 eV. The energy of the level 3 is E3=−1.5 eV. Formula...Chapter 31, Problem 1CQChapter 32, Problem 1CQIntroduction: The formation of one or more different atomic nuclei and the subatomic particles by...Given: The reaction of nuclear fission is n01+U92235→U92236→B56141a +Ky92r + x n01 Formula Used: An...Chapter 33, Problem 1CQChapter 34, Problem 1CQ
More Editions of This Book
Corresponding editions of this textbook are also available below:
COLLEGE PHYSICS (OER)
1st Edition
ISBN: 9781947172012
COLLEGE PHYSICS
2nd Edition
ISBN: 9781711470832
COLLEGE PHYSICS
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ISBN: 2810014673880
College Physics for AP Courses
1st Edition
ISBN: 9781630181871
College Physics
1st Edition
ISBN: 9781938168048
College Physics For Ap® Courses
16th Edition
ISBN: 9781938168932
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