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ch04

Course: PHYSICS 201, Fall 2012

School: Rutgers

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4 CHAPTER FORCES AND NEWTON'S LAWS OF MOTION ANSWERS TO FOCUS ON CONCEPTS QUESTIONS 1. (b) If only one force acts on the object, it is the net force; thus, the net force must be nonzero. Consequently, the velocity would change, according to Newtons first law, and could not be constant. 2. (d) This situation violates the first law, which predicts that the rabbits foot tends to remain in place where it was when...

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Rutgers - PHYSICS - 201
CHAPTER 5 DYNAMICS OF UNIFORMCIRCULAR MOTIONANSWERS TO FOCUS ON CONCEPTS QUESTIONS_1.(c) The velocity of car A has a constant magnitude (speed) and direction. Since its velocityis constant, car A does not have an acceleration. The velocity of car B
Rutgers - PHYSICS - 201
CHAPTER 6 WORK AND ENERGYANSWERS TO FOCUS ON CONCEPTS QUESTIONS1. (e) When the force is perpendicular to the displacement, as in C, there is no work. When theforce points in the same direction as the displacement, as in B, the maximum work is done.Whe
Rutgers - PHYSICS - 201
CHAPTER 7 IMPULSE AND MOMENTUMANSWERS TO FOCUS ON CONCEPTS QUESTIONS_1.(b) Kinetic energy, 1 mv 2 , is a scalar quantity and is the same for both cars. Momentum,2mv, is a vector quantity that has a magnitude and a direction. The two cars have differ
Rutgers - PHYSICS - 201
CHAPTER 8ROTATIONAL KINEMATICSANSWERS TO FOCUS ON CONCEPTS QUESTIONS1. (d) Using Equation 8.1 ( = Arc length / Radius) to calculate the angle (in radians) that eachobject subtends at your eye shows that Moon = 9.0 103 rad, Pea = 7.0 103 rad, andDime
Rutgers - PHYSICS - 201
CHAPTER 9 ROTATIONAL DYNAMICSANSWERS TO FOCUS ON CONCEPTS QUESTIONS_1.(d) A rigid body is in equilibrium if it has zero translational acceleration and zero angularacceleration. A body, such as a bicycle wheel, can be moving, but the translational and
Rutgers - PHYSICS - 201
CHAPTER10 SIMPLE HARMONIC MOTION ANDELASTICITYANSWERS TO FOCUS ON CONCEPTS QUESTIONS1. 0.12 m2. (c) The restoring force is given by Equation 10.2 as F = , where k is the spring constantkx(positive). The graph of this equation is a straight line and
Rutgers - PHYSICS - 201
CHAPTER11 FLUIDSANSWERS TO FOCUS ON CONCEPTS QUESTIONS__1.(b) According to the relation P2 = P + gh (Equation 11.4), the pressure P2 at the bottom1of the container depends on the height h of the fluid above it. Since this height is the samefor al
Rutgers - PHYSICS - 201
CHAPTER12 TEMPERATURE AND HEATANSWERS TO FOCUS ON CONCEPTS QUESTIONS1. (e) On each scale there are 100 degrees between the ice and steam points, so the size of thedegree is the same on each scale.2. (b) According to Equation 12.2, the change in lengt
Rutgers - PHYSICS - 201
CHAPTER13 THE TRANSFER OF HEATANSWERS TO FOCUS ON CONCEPTS QUESTIONS( k A T ) t ,1.(d) The heat conducted during a time t through a bar is given by Q =2.(b) This arrangement conducts more heat for two reasons. First, the temperature difference T b
Rutgers - PHYSICS - 201
CHAPTER 14 THE IDEAL GAS LAWAND KINETIC THEORYANSWERS TO FOCUS ON CONCEPTS QUESTIONS1. (d) This statement is not true, because the number of molecules that have a mass of ten gramsdepends on the molecular mass of the substance, which is different for
Rutgers - PHYSICS - 201
CHAPTER 15 THERMODYNAMICSANSWERS TO FOCUS ON CONCEPTS QUESTIONS_1.(c) This sign convention for Q and W is discussed in Section 15.3 (see, in particular,Equation 15.1).2. U = 9.3 105 J3.(c) According to the discussion in Section 15.4, the area und
Rutgers - PHYSICS - 201
CHAPTER 16 WAVES AND SOUNDANSWERS TO FOCUS ON CONCEPTS QUESTIONS1. (c) It is indeed the direction in which the disturbance occurs that distinguishes the two typesof waves.2. (a) As one domino topples against the next one in line, it is moving partly p
Rutgers - PHYSICS - 201
CHAPTER17 THE PRINCIPLE OFLINEAR SUPERPOSITION ANDINTERFERENCE PHENOMENAANSWERS TO FOCUS ON CONCEPTS QUESTIONS_1.(d) If we add pulses 1 and 4 as per the principle of linear superposition, the resultant is astraight horizontal line that extends acr
Rutgers - PHYSICS - 201
CHAPTER 18 ELECTRIC FORCES ANDELECTRIC FIELDSANSWERS TO FOCUS ON CONCEPTS QUESTIONS1. 1.9 10132. (b) Suppose that A is positive and B is negative. Since C and A also attract each other, Cmust be negative. Thus, B and C repel each other, because they
Rutgers - PHYSICS - 201
CHAPTER19 ELECTRIC POTENTIAL ENERGYAND THE ELECTRIC POTENTIALANSWERS TO FOCUS ON CONCEPTS QUESTIONS_1.(d) The force on the positive charge is in the same direction as the electric field, and thedisplacement of the charge is opposite to the directio
Rutgers - PHYSICS - 201
CHAPTER 20 ELECTRIC CIRCUITSANSWERS TO FOCUS ON CONCEPTS QUESTIONS1. 1.5 A2. (c) Ohms law states that the voltage V is directly proportional to the current I, according toV = IR, where R is the resistance. Thus, a plot of voltage versus current is a s
Rutgers - PHYSICS - 201
CHAPTER21 MAGNETIC FORCES ANDMAGNETIC FIELDSANSWERS TO FOCUS ON CONCEPTS QUESTIONS_1.(d) Right-Hand Rule No. 1 gives the direction of the magnetic force as x for both drawingsA and B. In drawing C, the velocity is parallel to the magnetic field, so
Rutgers - PHYSICS - 201
CHAPTER22 ELECTROMAGNETICINDUCTIONANSWERS TO FOCUS ON CONCEPTS QUESTIONS1. 3.5 m/s2. (e) The work done by the hand equals the energy dissipated in the bulb. The energydissipated in the bulb equals the power used by the bulb times the time. Since the
Rutgers - PHYSICS - 201
CHAPTER 23 ALTERNATING CURRENTCIRCUITSANSWERS TO FOCUS ON CONCEPTS QUESTIONS1.2(d) According to P = Vrms / R (Equation 20.15c), the average power is proportional to thesquare of the rms voltage. Tripling the voltage causes the power to increase by a
Rutgers - PHYSICS - 201
CHAPTER 24 ELECTROMAGNETIC WAVESANSWERS TO FOCUS ON CONCEPTS QUESTIONS1. (b) The loop can only detect the wave if the waves magnetic field has a componentperpendicular to the plane of the loop, that is, along the y axis. Only then will there be achang
Rutgers - PHYSICS - 201
CHAPTER25 THE REFLECTION OFLIGHT: MIRRORSANSWERS TO FOCUS ON CONCEPTS QUESTIONS1.(e) This is the definition of a wave front (see Section 25.1).2.(b) Rays are radial lines pointing outward from the source and perpendicular to the wavefronts. They p
Rutgers - PHYSICS - 201
CHAPTER 26 THE REFRACTION OFLIGHT: LENSES ANDOPTICAL INSTRUMENTSANSWERS TO FOCUS ON CONCEPTS QUESTIONS1. (c) When the light is refracted into liquid B it is bent away from the normal, so that nA &gt; nB.When the light is refracted into liquid C it is be
Rutgers - PHYSICS - 201
CHAPTER 27 INTERFERENCE ANDTHE WAVE NATURE OF LIGHTANSWERS TO FOCUS ON CONCEPTS QUESTIONS1.(e) The first intensity minimum occurs when the difference in path lengths issecond when the difference is2.32,and the third when the difference isth(a)
Rutgers - PHYSICS - 201
CHAPTER 28 SPECIAL RELATIVITYANSWERS TO FOCUS ON CONCEPTS QUESTIONS1. (e) In each of the situations in answers a-d, the person and the frame of reference is subject toan acceleration. In an accelerated reference frame Newtons law of inertia is not vali
Rutgers - PHYSICS - 201
CHAPTER 29 PARTICLES AND WAVESANSWERS TO FOCUS ON CONCEPTS QUESTIONS1.(a) At the higher temperature, the intensity per unit wavelength is greater, and the aximumoccurs at a shorter wavelength (see Section 29.2).2.(b) An X-ray photon has a much great
Rutgers - PHYSICS - 201
CHAPTER 30 THE NATURE OF THE ATOMANSWERS TO FOCUS ON CONCEPTS QUESTIONS1. (d) The Bohr model deals with a single negatively charged electron in orbit about a positivelycharged nucleus. Since only one electron is assumed to be present, the model does no
Rutgers - PHYSICS - 201
CHAPTER 31 NUCLEAR PHYSICSAND RADIOACTIVITYANSWERS TO FOCUS ON CONCEPTS QUESTIONS1.A(e) In the notation Z In, the symbol Z represents the number of protons, and the symbol Arepresents the number of protons plus the number of neutrons.2.(c) Because
Rutgers - PHYSICS - 201
CHAPTER 32 IONIZING RADIATION,NUCLEAR ENERGY, ANDELEMENTARY PARTICLESANSWERS TO FOCUS ON CONCEPTS QUESTIONS1. (c) The biologically equivalent dose (in rems) is the absorbed dose (in rads) times the relativebiological effectiveness. (See Equation 32.4
Istanbul Technical University - ENG - 102
Same sex marriage has been one of the most controversial issue for many years. Weknow that same sex marriage is marriage between two people who have the same sex. Lots ofpeople who are homosexuals(gays, lesbians) are aware that they are not taken seriou
East West University - FINANCE - 302
CHAPTER 3INTEGRATIVE PROBLEM3-33 ASSUME THAT YOU ARE NEARING GRADUATION AND THAT YOU HAVEAPPLIED FOR A JOB WITH A LOCAL BANK. AS PART OF THE BANK'SEVALUATION PROCESS, YOU HAVE BEEN ASKED TO TAKE ANEXAMINATION THAT COVERS SEVERAL FINANCIAL ANALYSISTE
East West University - FINANCE - 302
Case title: Greentree Investment Corporation (GIC)Assignment Questions:1. Perform stakeholder analysis: Where does the relationship exist? Betweenclient and advisor, or client and firm? What is critical in the relationship?The evolution of the sophist
Waterloo - MATH - 118
Monday, March 19 Lecture 30 : Examples on determining the function whichgenerates a series. (Refers to Section 8.8 in your text)After having practiced the problems associated to the concepts of this lecture the student should beable to: Find the functi
Waterloo - MATH - 118
Tuesday, March 20 Lecture 31 : Applications : Approximating the value of a series or afunction. (Refers to Section 8.9 in your text)After having practiced the problems associated to the concepts of this lecture the student should be able to: Use aTaylo
Waterloo - MATH - 118
Wednesday, March 21 Lecture 32 : Applications : Evaluation of definite integrals andlimits. (Refers to Section 8.9 in your text)After having practiced the problems associated to the concepts of this lecture the student should be able to:Use a Taylor se
Waterloo - MATH - 118
Monday, March 26 Lecture 33 : Parametric Equations, curves and tangents (Refersto Section 9.1, 9.2)After having practiced the problems associated to the concepts of this lecture the studentshould be able to : Plot simple parametric equations in the pla
Waterloo - MATH - 118
Tuesday, March 27 Lecture 34 : Polar Coordinates and polar equations (Refers toSection 9.3)After having practiced the problems associated to the concepts of this lecture the student shouldbe able to : Express polar coordinates in Cartesian coordinates
Waterloo - MATH - 118
Wednesday, March 28 Lecture 35 : Graphing polar equations - Tangents to polarcurves (Refers to Section 9.3)After having practiced the problems associated to the concepts of this lecture the student should be able to :Graph a polar equation r = f( ) by
Waterloo - MATH - 118
Monday, April 2 Lecture 36 : Lengths of polar curves and areas of polar regions.(Refers to Section 9.3, 9.4)After having practiced the problems associated to the concepts of this lecture the student shouldbe able to : Find the length of a polar curve w
Waterloo - MATH - 118
Tuesday, January 3 Lecture 1: Integration by substitution (Refers to 6.1 in yourtext)After having practiced using the concepts of this lecture the student should be ableto: define the differential of a function, integrate indefinite integrals by making
Waterloo - MATH - 118
Monday, January 9 Lecture 3 : Trigonometric integrals (Refers to Section 6.3 inyour text)After having practiced the problems associated to the concepts of this lecture the studentshould be able to: Apply some of the common trigonometric identities to t
Waterloo - MATH - 118
Tuesday, January 10 Lecture 4 : More Integration Methods : TrigonometricSubstitution (Refers to Section 6.4 in your text)After having practiced the problems associated to the concepts of this lecture the studentshould be able to: Solve integrals of fun
Waterloo - MATH - 118
Wednesday, January 10 Lecture 5 : Still More Integration Methods : Completingthe square and rational functions. (Not explicitly in your text)After having practiced the problems associated to the concepts of this lecture the studentshould be able to: So
Waterloo - MATH - 118
Wednesday, January 11 Lecture 6 : Rational functions : Partial fractions (Refersto Section 6.5 of your text)After having practiced the problems associated to the concepts of this lecture the studentshould be able to: Solve integrals containing rational
Waterloo - MATH - 118
Monday, January 16 Lecture 7 : Improper integrals. (Refers to section 6.6 in yourtext.)After having practiced the problems associated to the concepts of this lecture the studentshould be able to: Recognize the two different types of improper integrals,
Waterloo - MATH - 118
Wednesday, January 18 Lecture 9 : Error estimation for numerical integration.(Refers to section 5.3)After having practiced the problems associated to the concepts of this lecture the student shouldbe able to: Find error's bounds when applying either th
Waterloo - MATH - 118
Wednesday, January 25 Lecture 12 : Second-order Differential equations. (Notexplicitly discussed in your text)After having practiced the problems associated to the concepts of this lecture the student shouldbe able to: Solve second-order differential e
Waterloo - MATH - 118
Thursday, February 10 Lecture 20 : Alternating series (Refers to Section 8.2 inyour text)After having practiced the problems associated to the concepts of this lecture the student shouldbe able to: Define an alternating series, state the alternating se
Waterloo - MATH - 118
Monday, February 27 Lecture 21 : Absolute convergence and conditionalconvergence. (Refers to Section 8.5 in your text)After having practiced the problems associated to the concepts of this lecture the studentshould be able to: Define &quot;converges absolut
Waterloo - MATH - 118
Tuesday February 28 Lecture 22 : Ratio test and Root test. (Refers to Section 8.5 inyour text)After having practiced the problems associated to the concepts of this lecture the student should beable to: Apply the ratio test and the root test to determi
Waterloo - MATH - 118
Wednesday, February 29 Lecture 23 : Error bounds for series approximations.(Refers to Section 8.2 and 8.3 in your text)After having practiced the problems associated to the concepts of this lecture the student should beable to: Approximate the value of
Waterloo - MATH - 118
Monday, March 5 Lecture 24 : Power Series and their interval of convergence.(Refers to Section 8.6 in your text)After having practiced the problems associated to the concepts of this lecture the studentshould be able to: Define a power series centered
Waterloo - MATH - 118
Tuesday, March 6 Lecture 25 : Expressing a power series as a function andoperations on power series. (Refers to Section 8.7 )After having practiced the problems associated to the concepts of this lecture the student should beable to: Determine the sum,
Waterloo - MATH - 118
Wednesday, March 7 Lecture 26 : Expressing functions as a power series:Derivatives and Integrals of power series. (Refers to Sections 8.6 and 8.7 )After having practiced the problems associated to the concepts of this lecture the student should beable
Waterloo - MATH - 118
Monday, March 12 Lecture 27 : Taylor series and Maclaurin series generated by afunction f(x). (Refers to Section 8.8 your text)After having practiced the problems associated to the concepts of this lecture the student should be able to:Define a Taylor
Waterloo - MATH - 118
Tuesday, March 13 Lecture 28 : Taylor's remainder theorem: Convergence of aseries to its generator (Refers to Section 8.8 in your text)After having practiced the problems associated to the concepts of this lecture the student should be able to:Define t
Waterloo - MATH - 118
Wednesday, March 14 Lecture 29 : Binomial series (Refers to Section 8.8 in yourtext)After having practiced the problems associated to the concepts of this lecture the student should be able to:State and apply the Binomial series theorem.29.1 Introduct
Waterloo - PHYS - 125
Waterloo - PHYS - 125
Waterloo - PHYS - 125
Waterloo - PHYS - 125
Waterloo - PHYS - 125