Archives: Solution Manual

Problem 7.16 A cone and plate viscometer consists of a cone with a very small angle α that rotates above a flat surface as shown in the figure below. The torque, T, required to rotate the cone at an angular […]

Problem 7.1 A mixing basin in a sewage filtration plant is stirred by mechanical agitation (paddlewheel) with a power input (ft lb/s ) W⋅ . The degree of mixing of fluid particles is measured by a “velocity gradient” G given […]

Problem 6.92 We will see in Chapter 8 that the pressure drop in fully developed pipe flow is sometimes computed with the aid of a friction factor, defined by 2 1 2 p D f V ρ Δ = where […]

Also, 2 12 3 lb 0.167 lb ft 0.334 ft 6in. in. 12 ft pp p x − ∂ −= = = ∂     thus, from Eq. (1) 2 3 1.0 in. lb s ft in. 0.03 […]

Problem 6.70 “Stokes’s first problem” involves the instantaneous acceleration at time 0t= of a flat plate to a constant velocity 0 U while in contact with a “semi-infinite,” static fluid as shown in the figure below. For a constant fluid […]

From Eq. (1) 2 4 0.06 m 3s m 6.37 10 s2(15) A Vm π −     =× + 4m s − = 8.49×10 Problem 6.56 A Rankine oval is formed by combining a source-sink pair, each […]

and the stagnation point is on the wall to the righ0.0079 t of 6 t ft sli . The value of ψ at the stagnation point (r = 0.00796 ft, 0 θ =) is zero [Eq. (1)] so that the […]

Problem 6.29 Integrate Bernoulli’s equation for compressible flow, Solution 6.29 The equation is 2 2 dp V gz C ρ ++=  From the given pressure–density relationship n p C ρ =, 1n d pnC d ρρ − =, And […]

Problem 5.127 Find the acceleration of the cart shown in the figure below as a function of the water height in the cart, which varies with time. The initial total mass is 0 m, and the fluid density is 0 […]

Problem 5.119 Water is to be pumped from the large tank shown in the figure below with an exit velocity of 6 m/s. It was determined that the original pump (pump 1) that supplies 1kW of power to the water […]

Problem 5.109 A pump is to move water from a lake into a large, pressurized tank as shown in the figure below at a rate of 1000 gal in 10 min or less. Will a pump that adds 3hp to […]

Constructing a Good Syllabus and Sample Syllabi Constructing a Good Syllabus and Sample Syllabi for Teaching Public Speaking Preview In this section we provide three sample syllabi, including ones for an honors section and one for a service-learning approach. First, […]

Problem 5.97 Oil ( 1 0 psi) flows downward through a vertical pipe contraction as shown in the figure below. If the mercury manometer reading, h, is 100 mm, determine the volume flowrate for frictionless flow. Is the actual flowrate […]

Author Profiles and Contact Information Author Profiles and Contact Information Authors: J. Michael Hogan Patricia Hayes Andrews James R. Andrews Glen Williams J. Michael Hogan J. Michael Hogan is the Edwin Erle Sparks Professor of Rhetoric at the Pennsylvania State […]

and we note that the result is independent of the fluid involved. The value of ,1 V θ can be ascertained with the help of the section (1) velocity triangle sketched below.  11 s1.8 s Ar Thus with Eq. […]

Chapter 17: Ideas & Materials for Instruction CHAPTER 17: Speaking and Deliberating in Groups Overview Objectives Ideas for Instruction Introduction p. 351 Discussion questions: 17a Understanding Public Deliberation Engaging in Dialogue ·Benefits of Public Deliberation ·Potential Problems pp. 351–356 17.1 […]

(c) For θ =60, we use Eq. (4) to get 22 3 2 2 2 3 kg l mm N 999 5 (0.5 m)(cos 60 ) 1000 1 m sm mkg s l 1000 (3)( mm ) m shaft T […]

Chapter 16: Ideas & Materials for Instruction CHAPTER 16: Speaking on Special Occasions Overview Objectives Ideas for Instruction Ceremonial Speaking in a Free Society Remembering the Past ·Honoring Heroes ·Celebrating Shared Beliefs and Values ·Offering Inspiration and Encouragement pp. 326–331 […]

Problem 5.59 Determine the magnitude of the horizontal component of the anchoring force required to Solution 5.59 The control volumes of the figures below are appropriate for use in solving this problem. h u (b)(c) Control volume Water only Control […]

Chapter 15: Ideas & Materials for Instruction CHAPTER 15: Arguing Persuasively Overview Learning Objectives Ideas for Instruction Introduction Persuasion and Demagoguery in a Free Society pp. 299–301 15.1 Distinguish between persuasion and demagoguery. Discussion questions: 15a; 15b Activities: 15a Constructing […]

Using the table below, ()   ⋅     =−10        ⋅        =− =− 22 2 2 3 kg m m N s 998 […]

Chapter 14: Ideas & Materials for Instruction CHAPTER 14: Persuasive Speaking in a Democratic Society Overview Learning Objectives Ideas for Instruction Introduction p. 276 Discussion questions: 14a The Anatomy of Public Controversy Deliberating in Good Faith pp. 276–279 14.1 Define […]

Problem 5.35 Find the force components x F and y F required to hold the box as shown in the figure below stationary. The fluid is oil and has specific gravity of 0.85. Neglect gravity effects. Atmospheric pressure acts around […]

Chapter 13: Ideas & Materials for Instruction CHAPTER 13: Speaking to Inform Overview Learning Objectives Ideas for Instruction Functions of Informative Speeches Sharing Ideas and Information · Raising Awareness ·Articulating Alternatives pp. 257–258 13.1 Describe the different funct ions of […]

Problem 5.19 Two rivers merge to form a larger river as shown in the figure below. At a location downstream from the junction (before the two streams completely merge), the nonuniform velocity profile is as shown and the depth is […]

Chapter 12: Ideas & Materials for Instruction CHAPTER 12: Supporting Your Ideas Visually Overview Objectives Ideas for Instruction Functions of Presentational Aids Promoting Clarity ·Assisting Retention ·Providing Emphasis · Providing Support ·Encouraging Emotional Involvement ·Highlighting Using Graphs to Communicate Data: […]

Problem 5.1 Use the Reynolds transport theorem with volumeB= and, therefore, ==volume/mass 1/densityb to obtain the continuity equation for steady or unsteady incompressible flow through a fixed control volume: 0 CV dA⋅=  Vn . Solution 5.1 The Reynolds Transport […]

Chapter 11: Ideas & Materials for Instruction Assignment 11a: Video Self-Critique Instructors often video record students and have them to write a self-critique, based upon what they see and hear on the tape. If you pursue this option, you may […]

Problem 4.59 In the region just downstream of a sluice gate, the water may develop a reverse flow region as is indicated in the figure below. The velocity profile is assumed to consist of two uniform regions, one with velocity […]

Chapter 11: Ideas & Materials for Instruction 149 CHAPTER 11: Delivering Your Speech Effectively Overview Learning Objectives Ideas for Instruction “Sounding Good” versus “Being Sound” Beyond Delivery: Listening to the Message ·The Foundation of Ethical Delivery pp. 218–219 11.1 Explain […]

Problem 4.48 The velocity components for steady flow through the nozzle as shown in the figure below are =− and   =+     , where 0 V and are constants. Determine the ratio of the magnitude […]

Chapter 10: Ideas & Materials for Instruction CHAPTER 10: Using Language Effectively Overview Learning Objectives Ideas for Instruction Language and Meaning The Symbolic Nature of Language · Denotative and Connotative Meaning pp. 193–195 10.1 Understand the relationship between language and […]

Problem 4.33 As a valve is opened, water flows through the diffuser as shown in the figure below at an increasing flowrate so that the velocity along the centerline is given by 0(1 ) 1 ct x uV e − […]

Chapter 9: Ideas & Materials for Instruction CHAPTER 9: Outlining Your Speech Overview Learning Objectives Ideas for Instruction Types of Outlines Working Outlines ·Formal Outlines · Keyword Outlines pp. 178–179 9.1 Describe the different types of outlines and the purposes […]

FIND: Lagrangian expression =0 (,)VVVt where 0 V is car velocity at time =0t and 0x=. SOLUTION: The condition =0 VV at =0x gives or ×  =−=   1293.1 ln 1 1.0 0.1 88.5 B so =+ 0(1 […]

Chapter 8: Ideas & Materials for Instruction CHAPTER 8: Organizing Your Speech Overview Learning Objectives Ideas for Instruction The Elements of Sound Organization Clarity of Ideas ·Simplicity of Ideas · Suitability to the Situation pp. 152–154 8.1 Explain how the […]

V = V0 + ∆V (1–e–ax) Problem 4.2 The surface velocity of a river is measured at several locations x and can be reasonably represented by 0(1 ) ax VV V e − =+Δ − , where 0 V , […]

Chapter 7: Ideas & Materials for Instruction CHAPTER 7: Supporting Your Ideas Overview Learning Objectives Ideas for Instruction Supporting Ideas with Evidence Facts ·Definitions ·Examples · Statistics ·Testimony pp. 131–142 7.1 Identify and understand how to use the principal types […]

24.48fth= or 2a negative rooth=. Clearly, it is not possible (physically) to have 20h< Thus, 20.630 fth= or 24.48fth= Problem 3.124 Water flows in a rectangular channel that is 2.0 m wide as shown in the figure below. The upstream […]

Chapter 6: Ideas & Materials for Instruction CHAPTER 6: Responsible and Productive Research Overview Learning Objectives Ideas for Instruction A Productive Start Finding Relevant Information: A High– Speed Pursuit ·Highlighting How to Begin Your Investigation pp. 105–107 6.1 Establish a […]

Also, 22 00 11 01 22 pV pV zz gg γγ ++=++ where 10z= and () 3 3 12 1 m 9.10 10 m s4.63 s 0.05 m 4 Q VA π − × == = 2 234 1 10 […]

Chapter 5: Ideas & Materials for Instruction CHAPTER 5: Developing Significant Topics Overview Learning Objectives Ideas for Instruction Finding a Suitable Topic Finding Topics of Public Concern · What Matters to You? ·Conducting a Personal-Inventory pp. 87–91 5.1 Generate significant […]

Chapter 4: Ideas & Materials for Instruction CHAPTER 4: Diverse Audiences in a Democratic Society Overview Objectives Ideas for Instruction Understanding Diverse Audiences Age and Values ·Gender Roles and Stereotypes ·Race and Ethnicity · Cultural Differences ·Religion · Geographical Environment […]

With T dh Vdt =, Thus, 11 2 3 2, T dh gA h h h A dt  ++ =−  where 1,hh=2,hhL=+ 32hhL=+ and 2in.L= Hence, 0 1 0 22 t TL Adh gdt AhhLhL  −=  […]

Teaching Public Speaking 4e: Part Three A Note About Sexual Harassment Sexual harassment is not limited to the workplace but can exist in various other settings, including the academic setting. Sexual harassment exists when any one of the following conditions […]

or Thus, 2 2 3 120 33 2 ft 31.8 lb lb s 1.1 62.4 3.6 ft 42.5 (2.0 ft) ft 2ft ft 2 32.2 s V pzh g γγ          =−−= […]

Teaching Public Speaking 4e: Part Three Teaching Public Speaking 4e Part Three: Special Topics Contents The First Day of Class Working with Students with Disabilities Helping Students Manage Communication Apprehension Sexual Harassment The Group Presentation – by Abran Salazar Consistency […]

or 3 m 17.9 s V= Thus, 3 2 33 mm (0.050 m) 17.9 0.0351 4ss QAV π  == =   Also, 2 233 11 13 22 pV pV zz gg γγ ++=++ where 3 133 1 A […]

Chapter 3: Ideas & Materials for Instruction CHAPTER 3: Speaking with Confidence Overview Learning Objectives Ideas for Instruction Understanding Communication Apprehension pp. 47–49 3.1 Define communication apprehension. Discussion questions: 3a Activities: 3a Lecture Ideas: 3a Factors that Contribute to Communication […]

where 22 55 AV AV= Thus, 2 22 02 02 05 11 ( ) 8ft (3ft) 7.81ft 216 16 pV zz zz zz g γ =−− =−− − = − = or 232 lb lb 62.4 (7.81ft) 488 ft ft […]