# Register now to access 7 million high quality study materials (What's Course Hero?) Course Hero is the premier provider of high quality online educational resources. With millions of study documents, online tutors, digital flashcards and free courseware, Course Hero is helping students learn more efficiently and effectively. Whether you're interested in exploring new subjects or mastering key topics for your next exam, Course Hero has the tools you need to achieve your goals.

9 Pages

### 23Springs

Course: MECH 115, Fall 2006
School: Kettering
Rating:

Word Count: 635

#### Document Preview

Springs Hooke's 23 (force) law: F sp s =k s = k s s e each end exerts this force! spring constant k stiffness: demo Force : stretch ratio mass m Force : acceleration ratio follow up: WB 10.15 (p. 10-5) Spring FBDs draw a FBD for the object on each end A 20-cm-long spring is attached to a wall. When pulled horizontally with a force of 100 N, the spring stretches to a length of 22 cm....

Register Now

#### Unformatted Document Excerpt

Coursehero >> Michigan >> Kettering >> MECH 115

Course Hero has millions of student submitted documents similar to the one
below including study guides, practice problems, reference materials, practice exams, textbook help and tutor support.

Course Hero has millions of student submitted documents similar to the one below including study guides, practice problems, reference materials, practice exams, textbook help and tutor support.
Springs Hooke's 23 (force) law: F sp s =k s = k s s e each end exerts this force! spring constant k stiffness: demo Force : stretch ratio mass m Force : acceleration ratio follow up: WB 10.15 (p. 10-5) Spring FBDs draw a FBD for the object on each end A 20-cm-long spring is attached to a wall. When pulled horizontally with a force of 100 N, the spring stretches to a length of 22 cm. The same spring is now used in a tug-of-war. Two people pull on the ends, each with a force of 100 N. What is the value of the spring constant? How long is the spring while it is being pulled? The same spring is now suspended from a hook and a 10.2 kg block is attached to the bottom end. How long is the stretched spring? Elastic potential energy 1 2 U sp = k s 2 demo: springs store energy Usp: another form of potential energy acts similar to gravitational potential energy more than one type of potential energy may be present! K f U sf U gf = K i U si U gi Ex: A 200 g block on a frictionless surface is pushed against a spring with spring constant 500 N/m, compressing the spring 2.0 cm. If the block is released, with what speed is it shot away from the spring? model: m = 200 g k = 500 N/m Dx = 2.0 cm system = block+ spring visualize: before after xe Ex: A 200 g block on a frictionless surface is pushed against a spring with spring constant 500 N/m, compressing the spring 2.0 cm. If the block is released, with what speed is it shot away from the spring? solve: 1 1 2 m v f U f = K i k x 2 2 2 2 500 N / m kg m / s k vf= x = 0.02 m =1.0 m / s m 0.2 kg N assess: units? believable? reasonable? What happens as we increase... the compression? the mass? the spring constant? m = 200 g k = 500 N/m Dx = 2.0 cm follow A up: block sliding along a frictionless horizontal surface with velocity v collides with, and compresses a spring. The maximum compression is 1.4 cm. If the block then collides with the spring while having initial velocity 2v, the spring's maximum compression will be... (A) 0.35 cm (B) 0.7 cm (D) 2.8 cm (C) 1.4 cm (E) 5.6 cm If the spring above is replaced by another with spring constant twice as large, a block with velocity v will compress the new spring a maximum distance... model system = block+spring+earth y = 0 at top of spring arbitrarily visualize draw energy bar chart, WB 10-23, page 10-8 after y2=? v2=0 y2 y1 A 20-cm-tall spring with spring constant 5000 N/m is placed before vertically on the ground. A 10.2 kg y1=15 cm block is held 15 cm above the ye = 20 cm spring. The block is dropped, hits v1=0 the spring, and compresses it. What m=10.2 kg is the height of the spring at the k=5000 N/m point of maximum compression? Newton's Laws won't work! solve without differential equations We don't need to find v when it hits the spring! conservation of energy: K f U sf U gf = K i U si U gi 1 1 2 2 k y 2 m g y 2= m g y 1 k y 2 m g y 2 m g y 1=0 2 2 Equation is quadratic in y2 Quadratic formula 1 B B 2 4 A C k y 2 m g y 2 m g y 1 = 0 y 2 = 2 2 2A solve 1 B B 4 A C k y 2 m g y 2 m g y 1=0 y 2= 2 2 2A 2 m g m g 2 4 k / 2 m g y 1 m g m g 2 2 k m g y 1 y 2= = 2 k / 2 k 10.2 kg 9.8 m / s 10.2 kg 9.8 m / s 2 5000 N / m 10.2 kg 9.8 m / s 0.15 m 2 y 2= 2 22 2 2 kg m / s 5000 N / m N 100 N 400 N y 2= =0.1 m , 0.06 m 5000 N / m Assess: we expect y2 < 0 y2 = - 10 cm spring height l = ye+y2 = 20 cm - 10 cm = 10 cm units? believable? reasonable? What if we increase m? k? y1?
Find millions of documents on Course Hero - Study Guides, Lecture Notes, Reference Materials, Practice Exams and more. Course Hero has millions of course specific materials providing students with the best way to expand their education.

Below is a small sample set of documents:

Kettering - MECH - 115
24 elastic collisionsall collisions conserve pm1 v fx 1 m 2 v fx 2 = m1 v ix 1perfectly elastic collisions also conserve K111222m1 v fx 1 m 2 v fx 2 = m1 v ix 1222tedious algebra (p 287-8) yields v fx 1 = v fx 2=m1 m 2m1 m 22 m1m1 m 2
Kettering - MECH - 115
25 WorksfW = F s dssiWork force * distancenot generallyOnly the component of theforce in the direction of thedisplacement does workIF the force is constantW = F s cos Only if also q = 0 willW =F sW and DK: demoswork is an energy transfercar
Kettering - MECH - 115
26 variableforcesW = F s dssiWork force * distancesfnot generallyIF the force and the displacementare parallelsfW = F s dssiOnly if the force is also constantwillW =F sA 1 kg particle starts at x = 0 mwith vx = + 2 m/s.Which is true?(A)
Kettering - MECH - 115
27 Conservation of EnergyK f U f E th = K i U i W extscenarios:what's the system?(A) + (B) - (C) 0push a block across atable at constant speedDK=?DU=?a block slides to a haltWdiss = ?pick up a block, andplace it on a ledgeWext = ?toss a bloc
Kettering - MECH - 115
28 Rotationalkinematicsangular velocityddt = dtsign conventionCCW = +CW = -linear velocitydsvtdt s = v t dtrelationshipv t = r28 Rotationalkinematicsangular accelerationddt = dtsign conventionif a, w havesame sign: speeding upoppo
Kettering - MECH - 115
29 Torque, Rotational Dynamicstorque: rotational analog of forcesign convention: CCW = +, CW = - =r F sin follow up:WB 13.8,9 (p13-3)two complementary viewstangential forcemoment arm =d F =r F tfollow up: WB 13.11 (p13-4)follow up: WB 13.10 (p
Kettering - MECH - 115
30 Rotational kinetic energyAnother variety of kinetic energyFollow up:WB 13.28 p 13-11WB 13.29 p 13-111K rot = I 22Ex:RMwhich is moving fastestSame M, m, R, hhwhen the block hits?mmodelDisc, wheel are rigid bodiesBlock is a particleStr
Kettering - MECH - 212
Kettering - MECH - 212
Kettering UniversityMECH-212 StaticsSpring, 2007Instructor: Richard E. Stanley, Ph.D.Text:Engineering Mechanics: Dynamics, R.C. Hibbler, 10th EditionOffice:2-227 Mott BuildingPhone:(810) 599-4680 CELLE-Mail:rstanley@kettering.edu or via blackbo
Vellore Institute of Technology - MARKETING - 101
Telecom IndustryAIRTELPresentedBy:AnkitaShuklaAnkitaSrivastavaDevendraSinghGirdhariLalPrajapatiSmitaSinhaMissionWe will meet the mobile communication needs of ourcustomers through :Error-free service delivery.Innovative products and services.
Missouri State - ACCT - 40970
Chapter 13 Accounting and Reporting of Current andContingent LiabilitiesBrief Exercise13-1:July 1: Purchase60000Account PayableFreight in600001200Cash1200July 3: Account Payable6000Purchase return6000July 10: Account Payable54000Purchase
University of Phoenix - MATH 209 - 209
Health &amp; WellnessMath 209Learning Team AAnn Williams, Cerita Chappell, MargaretSanders,Sarah O'Neill &amp; Sondra Johnston,Professor: Karen Thorsett-HillW h at i ssu st ai n ab i l i t y ?Sustainability is the capacity toendure. For humans, sustainab
Amity University - ECONOMICS - 121
Planning and Budgeting: Practice Quiz 1344. The Sledge Hammer Company manufactures a line of high quality tools. The company sold 1,000,000 hammersat a price of \$4 per unit last year. The company estimates that this volume represents a 20% share of the
Kaplan University - AC 430 - AC 430-01
3-1 High Corporation incorporates on May 1 andbegins business on May 10 of the current year.What alternative tax years can High elect toreport its initial years income?High Corporation has a few possibilities to use as its tax year. First High Corpora
Kaplan University - AC 430 - AC 430-01
C:8-69 Angela owns all the stock of A, B, and P Corporations. P has owned all the stock ofS1 Corporation for six years. The P-S1 affiliated group has filed a consolidated tax return ineach of these six years using the calendar year as its tax year. On J
Kaplan University - AC 430 - AC 430-01
C:95An existing partner wants to contribute propertyhaving a basis less than its FMV for an additionalinterest in a partnership.a. Should he contribute the property to the partnership?He could contribute the property to the partnership tax-free; howev
Kaplan University - AC 430 - AC 430-01
6-5 Compare the tax consequences to the shareholderand the distributing corporation of the followingthree kinds of corporate distributions: ordinarydividends, stock redemptions, and completeliquidations.Ordinary dividends: The shareholder treats ordi
Kaplan University - AC 430 - AC 430-01
Current E&amp;P Computation. Water Corporation reports \$500,000 of taxable income forthe current year. The following additional information is available: For the current year, Water reports an \$80,000 long-term capital loss and no capitalgains. Taxable in
Kaplan University - BU 204 - 204
HOMEWORK - UNIT 6AGGREGATE SUPPLY AND AGGREGATE DEMANDChapter 10: Problems 1, 4, 10, and 13 on pages 266-267Chapter 10 / AGGREGATE SUPPLY AND AGGREGATE DEMAND/261. Your study partner is confused by the upward-sloping short-run aggregatesupply curve
Kaplan University - BU 204 - 204
HOMEWORK - UNIT 5LONG-RUN ECONOMIC GROWTH &amp; SAVINGS, INVESTMENT SPENDING,AND THE FINANCIAL SYSTEMChapter 8: Problems 7 and 8 on page 209Chapter 9: Problems 5 and 7 on page 235Chapter 8 / LONG-RUN ECONOMIC GROWTH/287. What roles do physical capital,
Kaplan University - BU 204 - 204
HOMEWORK - UNIT 9LABOR MARKETS, UNEMPLOYMENT AND INFLATION &amp; INFLATION,DISINFLATION, AND DEFLATIONChapter 15: Problems 4 and 10 on page 391Chapter 16: Problems 5 and 6 on page 413Chapter 15 / LABOR MARKETS, UNEMPLOYMENT, AND INFLATION/264.In North
Kaplan University - BU 204 - 204
HOMEWORK - UNIT 8MONEY, BANKING, AND THE FEDERAL RESERVE SYSTEM &amp; MONETARY POLICYChapter 13: Problems 3 and 12 on pages 340-341Chapter 14: Problems 5 and 10 on pages 366-367Chapter 13 / MONEY, BANKING, AND THE FEDERAL RESERVE SYSTEM/243.The table b
Kaplan University - BU 204 - 204
HOMEWORK - UNIT 7FISCAL POLICYChapter 12: Problems 3, 5, 6, and 13 on pages 316-318Chapter 12 / FISCAL POLICY/243.An economy is in long-run macroeconom ic equilibrium when each of thefollowing aggregate demand shocks occurs. What kind of gap infla
Kaplan University - BU 204 - 204
HOMEWORK - UNIT 4MACROECONOMICS : THE BIG PICTURE &amp; TRACKING THEMACROECONOMYChapter 6: Problems 2 and 4 on page 157Chapter 7: Problems 2 and 11 on pages 183 and 185Chapter 6 / MACROECONOMICS : THE BIG PICTURE/252. When one person saves, that person
Kaplan University - BU 204 - 204
/100Name:HOMEWORK - UNIT 3SUPPLY AND DEMAND &amp; THE MARKET STRIKES BACKChapter 3: Problems 5 and 14 on pages 79-82Chapter 4: Problems 5 and 7 on pages 105-108Chapter 3 / SUPPLY and DEMAND/245. Suppose that the supply schedule of Maine lobsters is as
Kaplan University - BU 204 - 204
/100Name: Terri ChichesterBU204HOMEWORK - UNIT 2ECONOMIC MODELS: TRADE-OFFS &amp; TRADEChapter 2: Problems 1, 3, 10, and 11 on pages 38-40Chapter 2 / ECONOMIC MODELS: TRADE-OFFS AND TRADE/261. Atlantis is a small, isolated island in the South Atlantic
Kaplan University - BU 204 - 204
/100Name: Terri ChichesterBU204HOMEWORK - UNIT 1FIRST PRINCIPLESChapter 1: Problems 2, 5, 9, and 12 on pages 18-19Chapter 1 / FIRST PRINCIPLES/242. Describe some of the opportunity costs when you decide to do thefollowing.a. Attend college inste
Kaplan University - BU 204 - 204
EnglishMathEconomicsTotalMarket basket2002200320043*50=150 3*55=165 3*57=1712*70=140 2*72=144 2*74=1484*80=320 4*90=360 4*100=400\$610\$669\$719
Kaplan University - MT 203 - MT203
A comeback for the UAW? 1Running head: A Comeback for the UAW?A Comeback for the UAW?Terri ChichesterKaplan UniversityMT203: Human Resources ManagementDana WilliamsMarch 27, 2011A comeback for the UAW? 2A Comeback for the UAW?IntroductionThe UA
Kaplan University - MT 203 - MT203
XCEL Energy Pays for Employees who Excel 1Running head: XCEL EnergyXCEL Energy Pays for Employees who ExcelTerri ChichesterKaplan UniversityMT203: Human Resources ManagementDana WilliamsMarch 21, 2011XCEL Energy Pays for Employees who Excel 2XCEL
Kaplan University - MT 203 - MT203
Thinking Ethically 1Running head: Thinking EthicallyThinking EthicallyTerri ChichesterKaplan UniversityMT203: Human Resources ManagementDana WilliamsMarch 14, 2011Thinking Ethically 2Thinking EthicallyIntroductionThroughout this case study the
Kaplan University - MT 203 - MT203
Training for Excellence at Wegmans Food Markets 1Running head: Training for Excellence at Wegmans Food MarketsTraining for Excellence at Wegmans Food MarketsTerri ChichesterKaplan UniversityMT203: Human Resources ManagementDana WilliamsMarch 6, 201
Kaplan University - MT 203 - MT203
Executives: Making It by Faking It 1Running head: Executives: Making It by Faking ItExecutives: Making It by Faking ItTerri ChichesterKaplan UniversityMT203: Human Resources ManagementDana WilliamsFebruary 26, 2011Executives: Making It by Faking I
Kaplan University - MT 203 - MT203
EMC Confronts Harassment Charge 1Running head: EMC Confronts Harassment ChargeEMC Confronts Harassment ChargesTerri ChichesterKaplan UniversityMT203: Human Resources ManagementDana WilliamsFebruary 14, 2011EMC Confronts Harassment Charge 2EMC Con
Kaplan University - BU 250 - BU250
#13 1st partDepositDepositEnrique Anglade's Account RegisterPayrollPayroll5374 check5375 check5376 check5377 checkDepositATMService fee5378 check5379 checkWithdrawldebitDate1-Apr3-Apr3-Apr3-Apr5-Apr15-Apr15-Apr20-Apr26-Apr4-May
Kaplan University - AC420 - 420
Ac 420Unit 9On this template you will find the following:Practice exercise 14-29Assigned exercise 14-28Practice problem 14-40Assigned problem 14-39Assigned problem 14-48Practice exercise 18-22Assigned exercise 18-21Assigned exercise 18-32AC 420
Kaplan University - AC420 - 420
Terri ChichesterAC 420Unit 3 project7/22/2011Exercise 13.a. Expected OH = (\$42,900 * 12) + ( \$6 * 78,000)= \$514,800 +\$468,000= \$982,800b. These are journal entries 5 and 6 to record overhead and then to apply overhead to workin process.(5)Manufa
Kaplan University - AC420 - 420
AC 420Unit 8Chapter 8Name _Terri ChichesterEx 8-21SalesEnd. InvQ1Q2Q3Q4Total1,080,000 1,360,000 980,000 1,100,000 4,520,000136,00098,000 110,000 120,000 464,000Total Required1,216,000 1,458,000 1,090,000 1,220,000 4,984,000Beg. Inv.Budg
Kaplan University - AC420 - 420
Southwest AirlinesTerri ChichesterAC 420Unit 7 Project8/23/2011Southwest Airlines has a very well developed organizational structure that is continuallymonitored and improved upon. The culture of southwest airlines is represented in all aspects oft
Kaplan University - AC420 - 420
Exercise 9-9Name:Terri ChichesterInsert your answers into the gray-shaded cells of columns E and G. If ananswer is incorrect, the word &quot;wrong&quot; will appear.a. Direct materialsDirect laborManufacturing overheadTotal variable production costDivided
Kaplan University - AC420 - 420
AC 420Chapter 7Name_For ex 7-15, you can use your own format, or you can complete the templates below.To use this template, fill in the boxes.Ex 7-15part aWhat is the actual cost per quart?Hint: paid \$10,080 for 4,200 quarts.What is the material
Kaplan University - AC420 - 420
Terri ChichesterAC 420Unit 4-Project8/2/2011Exercise 19a. CGS = .75 * sales= .75 * \$1,598,000= \$1, 198,500b. Cost of Goods Manufactured = Beginning Finished goods + CGM End Finished goods\$68,900 + CGM - \$165,600 = \$1,198,500CGM - \$96,700 = \$1,19
Kaplan University - AC420 - 420
Exercise 2-34Name:Terri ChichesterEnter the appropriate amounts in the gray-shaded cells of columns E and F. Enter amountsto be subtracted as negatives. If an answer is incorrect, the word &quot;wrong&quot; will appear.a.b.c.d.Targ Co.Cost of Goods Sold S
Kaplan University - AC420 - 420
AC 420Unit 5Chapter 6Ex 6-44check figures:Normal spoilage (Loss)8,400Pounds accounted for (EUP)material = 111,600conversion = 113,040Cost Assignment:Cost per EUP (conv.) = \$.30Conversion cost to complete (19,800 \$0.30) \$5,940Started &amp; complet
Kaplan University - AC300 - 300
International Products CompanyBalance SheetDecember 31, 2010AssetsNon-current assetsInvestment in held to maturity bondsSinking fund for bond retirementLandBuildingsLess: Accumulated depreciationEquipmentLess: Accumulated depreciationPatents (
Kaplan University - AC300 - 300
Terri ChichesterAC300-03Professor DayUnit 9, projectMaster CompanyAllowance for Doubtful accountsYear ended December 31, 2010DRBalance, beginning of yearProvision for 2010, 0.7% of\$50,000,000Write offsCR\$400,000350,000\$410,000Balance, end
Kaplan University - AC300 - 300
Terri ChichesterAC 300-03Professor DayUnit 8, projectPM-1 Future value of an investment1. What is the future value on December 31, 2014 of a deposit of \$35,000 made onDecember 31, 2010, assuming interest of 10% compounded annually?FV= \$35,000(1.464
Kaplan University - AC300 - 300
P6-3Name:Terri Chichester1. Enter the appropriate amounts in the shaded cells.An asterisk (*) will appear next to an incorrect amount in the outlined cells.SCHULTZ COMPANYWorksheetFor Year 6 Months Ended June 30, 2010Account TitlesCashAccounts r
Kaplan University - AC300 - 300
P5-9Name:1. Prepare a multiple-step format income statement by filling in the line items and amounts in the shaded cells.An asterisk (*) will appear next to an incorrect amount in specific cells.OLSEN COMPANYIncome StatementFor Year Ended December 3
Kaplan University - AC300 - 300
P4-4Name:Terri Chichester1. In the shaded cells, enter the appropriate account titles in column B and amounts in columns F,H, and J.An asterisk (*) will appear next to incorrect amounts for specific cells.INTERNATIONAL PRODUCTS COMPANYBalance Sheet
Kaplan University - AC300 - 300
P3-11Name:Terri Chichester1 &amp; 2. Enter the accounts and appropriate amounts in the shaded cells.An asterisk (*) will appear next to an incorrect amount in the outlined cells.FIORILLO COMPANYWorksheetFor Year Ended December 31, 2010Trial BalanceDe
Kaplan University - AC300 - 300
Terri ChichesterAC300Professor DayUnit 3, chapter 2C2-51. Explain the rationale for recognizing costs as expenses at the time of product sale.Costs are generally classified into two categories product cost and period costs. Productcosts are labor,
Kaplan University - AC300 - 300
Terri ChichesterAC300-03Unit 2, Chapter 1C1-9The rules for financial reporting are called Generally Accepted Accounting Principles (GAAP).GAAP is the guidelines, practices, and procedures that companies must use in reporting andrecording the account
AIB College of Business - BUS - 1001
Robin Hood Case Study.Submitted byGroup ANitesh K EPGDBM110309Raghavendra DV EPGDBM110312Shivani P EPGDBM110317Sobhit N EPGDBM110319Q1 What are Robin Hoods key problems?1. Increasing size of banda. Lack of discipline in bandb. Shelter/Space sho
University of Texas - CH 302 - 53740
McCordTHERMODYNAMICS (v1)Exam 4 Review TopicsFall 2008What sections?Chapter 9 sections 1-6 and Chapter 10 sections 1-9, 12-13. Plus Bond Energies (Chapter 13, Tables 13.6 and 13.7 - dont memorize them but DO know how to use them to calculate H of a r
Iowa State - EE - 224
Image Processing II: Filtering Images using ConvolutionPre-Lab: Read this handout before going to your assigned lab section. Download thematlab file containing the images from WebCT.Verification: Show the TA your written definitions of the key terms at
Iowa State - EE - 224
Signal Processing FirstLab 06: Digital Images: A/D and D/APre-Lab: You should read the Pre-Lab sections of this lab assignment and go ov er all exercis es inthe Pre-Lab s ection before going to your assigned lab session.Verificati on: The pre-lab sect
Iowa State - EE - 224
Properties of CT Convolution andConvolution Systems, ExamplesOutline: Properties of convolution commutativity, associativity, distributivity. Properties of continuous-time (CT) convolution systems linearity and time invariance, composition, deri
Iowa State - EE - 224
10.80.60.40.20-0.2-0.4-0.6-0.8-10Time offset: 0123456
Iowa State - EE - 224
0.40.30.20.10-0.1-0.2-0.30Time offset: 0123456
Iowa State - EE - 224
TOXICOLOGY: Exposure LimitsReferences:Safety in Academic Chemistry Laboratories, American Chemical Society, Washington, D.C.:2003, pp.10-15.Working Safely with Chemicals in the Laboratory, 2nd Ed., Genium Publishing, Schenectady,NY: 1994, pp. 8-17.T