# 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.

3 Pages

### H11_4-7-10

Course: PHYSICS 115, Spring 2010
School: Maryland
Rating:

Word Count: 154

#### Document Preview

Temperature H11: of liquid nitrogen Materials: liquid nitrogen, copper cylinder, large Styrofoam cup, grabbers for handling the copper, warm water, temperature probes Initial Instructions and questions: Design an experiment to determine the boiling point of nitrogen. (Note: the liquid nitrogen you will be given will be boiling.) Important: liquid nitrogen is so cold you cannot put a temperature probe into it...

Register Now

#### Unformatted Document Excerpt

Coursehero >> Maryland >> Maryland >> PHYSICS 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.
Temperature H11: of liquid nitrogen Materials: liquid nitrogen, copper cylinder, large Styrofoam cup, grabbers for handling the copper, warm water, temperature probes Initial Instructions and questions: Design an experiment to determine the boiling point of nitrogen. (Note: the liquid nitrogen you will be given will be boiling.) Important: liquid nitrogen is so cold you cannot put a temperature probe into it without destroying the probe. Do not do it! Come up with scheme a using the copper cylinder and a known amount of warm or room temperature water (about 300 mL is good). Re-weigh the cylinder. They arent all the same. When you have a plan, call your teacher over and explain it. Guide to notes in your lab notebook: 1. How did your value of the boiling point of nitrogen compare with the accepted value (-196 C)? 2. Discuss possible sources of error? 3. How would you change your experiment to obtain a more reliable result?
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:

Maryland - PHYSICS - 115
H12: Rate of cooling, conservation of energy, Emmy NoetherMaterials:two small Styrofoam cups, each containing 200 mL of hot water, temperatureprobesInitial Instructions and questions:Design an experiment to test your ability to maintain the temperatu
Maryland - PHYSICS - 115
O1: Light emission from a bulbMaterials:Incandescent light bulbs, various light bulbs with unusual filament shapes, screenInitial definitions and givens:Incandescent: containing a filament that glows white-hot when a current is passedthrough it. (bas
Maryland - PHYSICS - 115
O2: Fun with shadowsMaterials:Incandescent light bulbs, screen, cardboard and scissorsInitial instructions and questions:1) Cut a shape out of thick paper. What do you predict the shadow will look like?Draw a sketch. How can you change the size of th
Maryland - PHYSICS - 115
O3: View through a pinhole cameraMaterials:Optical bench, metal cylinder, black paper, tape, pin, translucent screen, lightsourceInitial instructions and questions:1) Imagine light traveling through a tiny pinhole punched in a piece of blackpaper. D
Maryland - PHYSICS - 115
O4: Geometry of pinhole imagesMaterials:Optical bench, metal cylinder, black paper with a pinhole, translucent screen,projector to project a simple shapeInitial instructions and questions:1) Suppose you very gradually enlarged your pinhole, until eve
Maryland - PHYSICS - 115
O5: RefractionMaterials:Small rectangular fish tank, plastic ruler, big beaker, various sized metal rodsInitial instructions and questions:1) Fill your rectangular tank about 2/3 full of water.(a) Stick your ruler straight up and down, and view it th
Maryland - PHYSICS - 115
O6: Refraction: ray diagrams and Snells LawMaterials:Ray box, masking tape, semi-circular prism, rectangular prism, triangular prism,convex and concave lenses, polar graph paperInitial instructions and questions:1) Take a semi-circular prism, and for
Maryland - PHYSICS - 115
O7: An introduction to lensesMaterials:optical bench, concave lens, convex lens, graph paperInitial definitions and givens:focal point: the point at which incident parallel rays converge after passingthrough a positive lens or appear to diverge from
Maryland - PHYSICS - 115
O8: Lenses: ray diagramsMaterials:Ray box, optical bench, concave lens, convex lensInitial definitions and givens:real image: an image that can be projected on a screen. Light rays actuallyconverge there. Real images are always inverted.virtual imag
Maryland - PHYSICS - 115
O9: Ray tracing and imagesMaterials:Paper and rulerInitial definitions and givens:Converging (positive) lensDiverging (negative lens)
Maryland - PHYSICS - 115
O10: Eyes as an optical instrument and corrective lensesMaterials:Your eye, mirror, flashlight, optical bench, various concave and convex lensesInitial definitions and givens:CategoryNear PointFar PointNormal vision15 - 25 cmGreater than 2 mFars
University of Phoenix - XCOM - XCOM 285
Running head: BUSINESS ETHICS REFLECTION1Business Ethics ReflectionBrandon TateXMGT-216September 24, 2011Michael IshmaelBUSINESS ETHICS REFLECTION2Business Ethics ReflectionEthics are what we as a society use to determine how the decisions we ma
University of Phoenix - XCOM - XCOM 285
Axia College MaterialAppendix CClarifying Personal ValuesEach of you will be faced with numerous moral and ethical dilemmas throughout your career. Tobe prepared to make these ethical decisions, it is helpful to clarify your personal values, andmoral
Maryland - PHYSICS - 115
P hysics 115 S pring 2010 - L ist of ExperimentsD.C. HamiltonE1 Batteries and bulbsE2 What materials are conductors?E3 Batteries in seriesE4 Size and direction of currentE5 Bulbs in seriesE6 Parallel circuitsE7 More on parallel circuitsE8 Voltmet
University of Phoenix - XCOM - XCOM 285
Checkpoint Week 1The purchase of a new house is a very big move but is a necessity when having a new baby.Currently we are living in an apartment so that we could save money, but it is not close to theschools or other things that we will need for the b
Maryland - PHYSICS - 115
Physics 115Spring 2010Calibrating the Temperature ProbesEquipment needed:1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.16.17.18.1. Cold water (ice water)2. Hot water3. Alcohol thermometer4. Temperature probesMake a copy of the Temp
University of Phoenix - XCOM - XCOM 285
Running head: SUPPLY AND DEMAND1Supply and DemandBrandon TateXECO-212September 24, 2011Angela SmithSUPPLY AND DEMAND2Supply and DemandThe conditions of the housing market in the area where you want to buy a new home aregoing to be a big factor
University of Phoenix - XCOM - XCOM 285
Checkpoint: Week 3Historical Example of Labor Supply and DemandIn 1929 the United States saw a enormous slump in the economy that has become known as theGreat Depression. Supply and demand was one of the causes in that it did not work as it issupposed
Maryland - PHYSICS - 270
Chapters 21 &amp; 22Interference and Wave OpticsWaves that are coherent can add/cancelPatterns of strong and weak intensitySingle Spherical SourceApproximate Electric Field:E (r, t ) = A(r ) cos( kr t + )Field depends on distance from sourceand time.
University of Phoenix - XCOM - XCOM 285
Axia College MaterialAppendix CDifferentiating Between Market Structures Table and QuestionsFill in the matrix and describe differences in public and private goods, commonresources, and natural monopolies. Use your book and the Tomlinson video tutoria
Maryland - PHYSICS - 270
Incoherent vs Out of PhaseIncoherentTwo signals have differentfrequencies. Sometimes the samesign, sometimes opposite signs.Coherent, but out of phase.Two signals have the samefrequency, but one leads or lagsthe other.10.50.5Field1.51Field
University of Phoenix - XCOM - XCOM 285
Axia College MaterialAppendix CDifferentiating Between Market Structures Table and QuestionsFill in the matrix and describe differences in public and private goods, commonresources, and natural monopolies. Use your book and the Tomlinson video tutoria
University of Phoenix - XCOM - XCOM 285
Week 5 CheckpointFiscal policy is used by the U.S. government to make sure that inflation is controlledduring economic recessions. The President and Congress share the responsibility of controllingfiscal policy management. Increases and decreases in ta
Maryland - PHYSICS - 270
Chapter 23Ray OpticsChapter 23. Ray OpticsTopics: The Ray Model of Light Reflection Refraction Image Formation by Refraction Color and Dispersion Thin Lenses: Ray Tracing Thin Lenses: Refraction Theory Image Formation with Spherical MirrorsWav
University of Phoenix - XCOM - XCOM 285
Code of Ethics:All employees will conduct themselves morally and ethically as professionals in theworkplaceAll employees will abide by all rules and regulations that are enforced in the workplace.All employees respect other employees within the compan
Maryland - PHYSICS - 270
LensesThin Lenses: Ray TracingThin Lenses: Ray TracingThin Lenses: Ray TracingReal ImageThin lens approximationd &lt; D, fyD=2ad(y)We would like to show thatall rays, independent of thepoint they pass through thelens, y, focus to the samepoint
University of Phoenix - XCOM - XCOM 285
Running head: CHECKPOINT: A NEW HOUSE ECONOMY1Checkpoint: A New House EconomyBrandon TateXECO-212October28,2011Alvin FuentesCHECKPOINT: A NEW HOUSE ECONOMY2Checkpoint: A New House EconomyThe purchase of a new house can be a life altering decisio
Maryland - PHYSICS - 270
Chapter 25. Modern Optics andMatter WavesThis image of the individualatoms in a silicon crystalwas made by exploiting thewave properties of electrons.Sometimes, electrons act lesslike particles and more liketraveling waves. This is animportant re
University of Phoenix - XCOM - XCOM 285
International Trade Simulation 1......International Trade SimulationBrandon TateXECO-212November 06, 2011Angela Smith.International Trade Simulation 2Through international trade, every country worldwide can benefit by eitherimportation or e
Maryland - PHYSICS - 270
1. Moving charges (or equivalently electrical currents) create a magnetic field,!! 0 qv rB(r ) =,24 r!Here v is the velocity of the moving charge.This is the analog to the expression for the electric field due to a point charge.!E(r ) =qr4 0
University of Phoenix - XCOM - XCOM 285
Maryland - PHYSICS - 270
Chapter 34 ViewgraphsFaradays DiscoveryA current in a coil is induced if the magnetic field throughthe coil is changing in time.The current can be induced two different ways:1. By changing the size, orientation or location of the coilin a steady mag
Maryland - PHYSICS - 270
Chapter 35 ViewgraphsPreview of what is comingNew!Gives rise toElectromagneticwaves.Moving observers do not agree on thevalues of the Electric and magnetic fields.Observer S says:F = q E + v BObserver S says:How can both be right?(F = qE)q
Maryland - PHYSICS - 270
Chapter 36 ViewgraphsAC CircuitsIntroductionMost currents and voltages vary in time.The presence of circuit elements like capacitors and inductorscomplicates the relation between currents and voltage whenthese depend on time.Resistive element-I&amp;V
Maryland - PHYSICS - 270
Chapter 37. RelativityChapter1. Newtons laws and Maxwells equations describe the motionof charged particles and the propagation of electromagneticwaves under circumstances where the Quantum effects wediscussed last week can be ignored.2. There are s
Maryland - PHYSICS - 270
Chapter 38. The End ofStudies of the Classical Physicslight emittedby gas discharge tubeshelped bring classicalphysics to an end.Chapter Goal: Tounderstand how scientistsdiscovered the properties ofatoms and how thesediscoveries led to the need
Maryland - PHYSICS - 270
Chapter 39. QuantizationChapter 39. QuantizationTopics: The Photoelectric Effect Einsteins Explanation Photons Matter Waves and Energy Quantization Bohrs Model of Atomic Quantization The Bohr Hydrogen Atom The Hydrogen SpectrumThe Photoelectric
Maryland - PHYSICS - 270
Chapter 40Wavefunctions and UncertaintyChapter 40. Wave FunctionsChapterand UncertaintyTopics: Waves, Particles, and the Double-SlitExperiment Connecting the Wave and Photon Views The Wave Function Normalization Wave Packets The Heisenberg Unc
Maryland - PHYSICS - 270
Chapter 411D WavefunctionsChapter 41. One-DimensionalQuantum MechanicsTopics: Schrdingers Equation: The Law of Psi Solving the Schrdinger Equation A Particle in a Rigid Box: Energies and Wave Functions A Particle in a Rigid Box: Interpreting the S
Maryland - PHYSICS - 270
Exam 1 - ResultsEXAM 135Mean: 67StDv: 17Score3025Grade# Students20Count1584-100A231067 - 83B4450 - 66C33502033 - 49D130 - 32F530405060Score708090100
Maryland - PHYSICS - 270
Maryland - PHYSICS - 270
Exam 2 - ResultsExam230Mean: 53.7StDv: 1625ScoreGrade# Students70-100A2054 - 69B3538 - 53C4822 - 37D190 - 22F32015Count10500204060Score80100100806040Exam2Score200203040506070Exam1Score8090100
Maryland - PHYSICS - 270
Maryland - PHYSICS - 270
Exam 2 - ResultsExam 330Mean: 66StDv: 16252015Count10502030405060Score708090100100806040Exam2Score200203040506070Exam1Score8090100
Maryland - PHYSICS - 270
Maryland - PHYSICS - 270
Maryland - PHYSICS - 270
Maryland - PHYSICS - 270
Maryland - PHYSICS - 270
Maryland - PHYSICS - 270
Maryland - PHYSICS - 270
HW#6SolutionsConceptualQuestionsExercisesandProblems
Maryland - PHYSICS - 270
ProblemSet#7:SolutionsConceptualquestions:1(a)Xc=1/C;Itishalvedwhenfrequencyisdoubledanddoubledwhenfrequencyishalved1(b)Yesduringthepartofthecyclethatthecurrentflowstowardsthebattery.SeeFig.36.23duringcycleslabeledasenergyfromfieldtocircuit .Firstan
Maryland - PHYSICS - 270
Maryland - PHYSICS - 270
HW#9SolutionsConceptualQuestionsExercisesandProblems
Maryland - PHYSICS - 270
HW#10SolutionsConceptualQuestionsExercisesandProblems
Maryland - PHYSICS - 270
HW 11 Solu)ons Conceptual Ques)ons: Problems and Exercises HW # 12 Solu)ons ASSIGNMENT # 11 Problem 1 SOLUTION 1. Since the speed of light is 20 miles/hr moving at 18 miles per hour the value of gamma is = 2.3
Maryland - PHYSICS - 270
Conc. Qs HW # 12 Solu+ons Exercises and Problems Problem 1 Problems not assigned
Maryland - PHYSICS - 270
MasteringPhysics: Course HomeStudent View2/22/11 9:04 AMSummary ViewDiagnostics ViewPrint View withEdit AssignmentAnswersSettings per StudentIntroduction to MasteringPhysicsDue: 12:00pm on Thursday, January 27, 2011[ Print ]Note: You will recei
Maryland - PHYSICS - 270
Chapter 33Executive SummaryPhys270Moving charges exert forces on each other that augment (add to) Coulombs LawThis can be viewed as a two-step process:1. Moving charges (or equivalently electrical currents) create a magnetic field,!! qv r,B(r )
Maryland - PHYSICS - 270
Maryland - PHYSICS - 270