hwu and john w sias

... Scientists and Engineers with Modern Physics PHYSICS for Scientists and Engineers with Modern Physics Seventh Edition Raymond A Serway Emeritus, James Madison University John W Jewett, Jr California ... • United Kingdom • United States Physics for Scientists and Engineers with Modern Physics, Seventh Edition Raymond A Serway and John W Jewett, Jr Physics Acquisition Editor: Chris Hall Publisher: ... http://www.thomsonrights.com Any additional questions about permissions can be submitted by e-mail to thomsonrights@thomson.com We dedicate this book to our wives Elizabeth and Lisa and all

Ngày tải lên: 05/10/2016, 13:45

... OSCILLATIONS AND MECHANICAL WAVES John W Jewett, Jr Part 1 417 Oscillatory Motion 418 Wave Motion 449 Sound Waves 474 Superposition and Standing Waves 500 THERMODYNAMICS 531 Temperature 532 The First Law ... 18.8 Superposition and Interference 501 Standing Waves 505 Standing Waves in a String Fixed at Both Ends 508 Resonance 512 Standing Waves in Air Columns 512 Standing Waves in Rods and Membranes 516 ... nature were not beautiful, it would not be worth knowing, and if nature were not worth knowing, life would not be worth living —Henri Poincaré © Thomson Learning/Charles D Winters To the Student xxxi

Ngày tải lên: 05/10/2016, 13:45

... traveling eastward and slowing down, what is the direction of the force on the car that causes it to slow down? (a) eastward (b) westward (c) neither eastward nor westward vx From now on we shall ... data are known to three significant digits, we write 6.379 m ϭ 6.38 m and 6.374 m ϭ 6.37 m When a number ends in 5, we arbitrarily choose to write 6.375 m ϭ 6.38 m We could equally well write 6.375 ... WebAssign Sign in at www.thomsonedu.com and go to ThomsonNOW to assess your understanding of this chapter’s topics with additional quizzing and conceptual questions 1, 2, denotes straightforward,

Ngày tải lên: 05/10/2016, 13:46

... Two swimmers, Alan and Beth, start together at the same point on the bank of a wide stream that flows with a speed v Both move at the same speed c (where c Ͼ v), relative to the water Alan swims ... particles, and (4) weak forces that arise in certain radioactive decay processes In classical physics, we are concerned only with gravitational and electromagnetic forces We will discuss strong and weak ... the water falls into a pool (a) Will the space behind the waterfall be wide enough for a pedestrian walkway? (b) To sell her plan to the city council, the architect wants to build a model to standard

Ngày tải lên: 05/10/2016, 13:47

... Sign in at www.thomsonedu.com and go to ThomsonNOW to slide the book with varying speeds and watch the energy transformation on an active energy bar chart 182 Chapter Energy of a System within the ... Sign in at www.thomsonedu.com and go to ThomsonNOW to assess your understanding of this chapter’s topics with additional quizzing and conceptual questions 1, 2, denotes straightforward, intermediate, ... curve associated with a molecule The distance x is the separation between the two atoms making up the molecule 187 Summary Summary Sign in at www.thomsonedu.com and go to ThomsonNOW to take a practice

Ngày tải lên: 05/10/2016, 13:49

... direction S What If? What if the initial velocity vi in part (B) were downward? How would that affect the speed of the ball at position y? Answer You might claim that throwing the ball downward would ... spring-loaded popgun (a) before firing and (b) when the spring extends to its relaxed length Sign in at www.thomsonedu.com and go to ThomsonNOW to fire the gun and watch the energy changes in the projectile–spring–Earth ... changing in the system Sign in at www.thomsonedu.com and go to ThomsonNOW to throw balls at different angles from the top of the building and compare the trajectories and the speeds as the balls hit

Ngày tải lên: 05/10/2016, 13:49

... smokestack can withstand, and the smokestack breaks The same thing happens with a tall tower of children’s toy blocks Borrow some blocks from a child and build such a tower Push it over and watch it ... object counterclockwise about an axis S through O, and F2 tends to rotate it clockwise Sign in at www.thomsonedu.com and go to ThomsonNOW to change the magnitudes, directions, and Spoints of S ... the answers to parts b and c, and the answers to parts f and g 69 A chain of length L and total mass M is released from rest with its lower end just touching the top of a table as shown in Figure

Ngày tải lên: 05/10/2016, 13:51

... elastically 44 Two spheres having masses M and 2M and radii R and 3R, respectively, are released from rest when the distance between their centers is 12R How fast will each sphere be moving when they ... player wearing sneakers or (b) a petite woman wearing spike-heeled shoes? The Water Bed The mattress of a water bed is 2.00 m long by 2.00 m wide and 30.0 cm deep (A) Find the weight of the water ... 19 Suppose the Sun’s gravity were switched off Objects in the solar system would leave their orbits and fly away in straight lines as described by Newton’s first law Would Mercury ever be farther

Ngày tải lên: 05/10/2016, 13:53

... engineers who design and build them must take into account To understand how radio and television work, we must understand the origin and nature of electromagnetic waves and how they propagate through ... air, elements of the air oscillate back and forth; as a water wave travels across a pond, elements of the water oscillate up and down and backward and forward The motion of the elements of the ... WebAssign Sign in at www.thomsonedu.com and go to ThomsonNOW to assess your understanding of this chapter’s topics with additional quizzing and conceptual questions 1, 2, denotes straightforward,

Ngày tải lên: 05/10/2016, 13:54

... tension is not uniform What If? What if the block were swinging back and forth with respect to the vertical? How would that affect the wave speed on the string? Answer The swinging block is categorized ... same way That is, the water wave moves from the point of origin to the shore, but the water is not carried with it The world is full of waves, the two main types being mechanical waves and electromagnetic ... Transmission The traveling wave model describes waves traveling through a uniform medium without interacting with anything along the way We now consider how a traveling wave is affected when it encounters

Ngày tải lên: 05/10/2016, 13:55

... north to south and produces a straight tsunami wave crest moving everywhere to the west If the wave has amplitude 1.80 m when its speed is 200 m/s, what will be its amplitude where the water is 9.00 ... (1803–1853), who in 1842 predicted the effect for both sound waves and light waves (a) v waves v boat (b) v waves (c) v boat v waves Figure 17.7 (a) Waves moving toward a stationary boat The waves travel ... Source and observer are stationary, with a steady wind blowing from the source toward the observer (g) Source and observer are stationary, with a steady wind blowing from the observer toward the

Ngày tải lên: 05/10/2016, 13:55

... www.thomsonedu.com and go to ThomsonNOW to choose the wavelength of the waves and see the standing wave that results Section 18.2 Standing Waves 507 ing waves, and the brown curves are the wave ... in at www.thomsonedu.com and go to ThomsonNOW to choose the amplitude and orientation of each of the pulses and watch the interference as they pass each other Sign in at www.thomsonedu.com and ... (c) When the phase angle has a value other than or p rad, the resultant wave y falls somewhere between the extremes shown in (a) and (b) Sign in at www.thomsonedu.com and go to ThomsonNOW to

Ngày tải lên: 05/10/2016, 13:56

... temperature for this new scale was chosen as the triple point of water, which is the single combination of temperature and pressure at which liquid water, gaseous water, and ice (solid water) coexist ... cooled and decreased in volume As a result, the surface water sinks, and warmer water from below is forced to the surface to be cooled When the air temperature is between 4°C and 0°C, however, ... shows that the energy transfer for the water is mwcw(Tf Ϫ Tw), which is positive because Tf Ͼ Tw , and that the energy transfer for the sample of unknown specific heat is mxcx(Tf Ϫ Tx ), which

Ngày tải lên: 05/10/2016, 13:57

... Law of Thermodynamics Answer More steam would be needed to raise the temperature of the water and glass to 100°C instead of 50.0°C There would be two major changes in the analysis First, we would ... transfer to the system by heat Q and work W In the situation shown here, the internal energy of the gas increases Sign in at www.thomsonedu.com and go to ThomsonNOW to choose one of the four processes ... of use and safety, the poker should be made from a material (a) with high specific heat and high thermal conductivity, (b) with low specific heat and low thermal conductivity, (c) with low specific

Ngày tải lên: 05/10/2016, 13:58

... penetrate the surface and even leave the liquid at temperatures well below 200 Nv [molecules/(m/s)] Sign in at www.thomsonedu.com and go to ThomsonNOW to move the blue rectangle and measure the number ... krypton, which does not exist on Earth Problems The Problems from this chapter may be assigned online in WebAssign Sign in at www.thomsonedu.com and go to ThomsonNOW to assess your understanding ... engine does work Weng The arrow at the top represents energy Q h Ͼ entering the engine At the bottom, Q c Ͻ represents energy leaving the engine Qh Weng Engine Sign in at www.thomsonedu.com and go

Ngày tải lên: 05/10/2016, 13:58

... pump, which takes in energy Q c Ͼ from a cold reservoir and expels energy Q h Ͻ to a hot reservoir Work W is done on the heat pump A refrigerator works the same way Sign in at www.thomsonedu.com and ... (1796–1832) Carnot was the first to show the quantitative relationship between work and heat In 1824, he published his only work, Reflections on the Motive Power of Heat, which reviewed the industrial, ... piston moves up and down twice, which represents a four-stroke cycle consisting of two upstrokes and two downstrokes The processes in the cycle can be approximated by the Otto cycle shown in the PV

Ngày tải lên: 05/10/2016, 13:58

... law and symmetry, E1 ϭ In regions ‫ܩ‬, ‫ܪ‬, and ‫ܫ‬, there would be no way to determine whether the sphere is conducting or insulating Summary Sign in at www.thomsonedu.com and go to ThomsonNOW ... WebAssign Sign in at www.thomsonedu.com and go to ThomsonNOW to assess your understanding of this chapter’s topics with additional quizzing and conceptual questions 1, 2, denotes straightforward, ... exist between them, as there was for the balloon and the wall? Problems The Problems from this chapter may be assigned online in WebAssign Sign in at www.thomsonedu.com and go to ThomsonNOW to assess

Ngày tải lên: 05/10/2016, 13:59

... negative and E is directed downward, this electric force is directed upward as shown in Figure 25.23b.SIf this upward force is strong enough, the drop movesS upward and the drag force F D¿ acts downward ... S The electric field E and the electric potential V are related as shown in Equation S 25.3, which tells us how to find ⌬V if the electric field E is known We now show how to calculate the value ... maintained between a wire running down the center of a duct and the walls of the duct, which are grounded The wire is maintained at a negative electric potential with respect to the walls, so the

Ngày tải lên: 05/10/2016, 14:00

... WebAssign Sign in at www.thomsonedu.com and go to ThomsonNOW to assess your understanding of this chapter’s topics with additional quizzing and conceptual questions 1, 2, denotes straightforward, ... in at www.thomsonedu.com and go to ThomsonNOW to adjust the battery voltage and see the resulting charge on the plates and the electric field between the plates 732 Chapter 26 Capacitance and ... materials between the plates of the capacitor are the wallboard and air (b) When the capacitor moves across a stud in the wall, the materials between the plates are the wallboard and the wood The

Ngày tải lên: 05/10/2016, 14:00

... battery, how much energy would have been stored? 28 Two capacitors, C ϭ 25.0 mF and C ϭ 5.00 mF, are connected in parallel and charged with a 100-V power supply (a) Draw a circuit diagram and calculate ... the unknown capacitance 60 A parallel-plate capacitor with plates of area LW and plate separation t has the region between its plates filled with wedges of two dielectric materials as shown in Figure ... practice to install low-flow showerheads in homes as a water-conservation measure We quantify the flow of water from these and similar devices by specifying the amount of water that emerges during

Ngày tải lên: 05/10/2016, 14:01