Exam Definition and 886 Threads

  1. T

    Calc A-B Exam: What to Expect & How to Prepare

    i am in 11 grade and i have taught myself calculus so the calc teacher at my school sighned me up for the A-B calc exam and i was wondering what types of problems are on the A-B calc exam and what do i need to get more in depth with to take the A-B calc exam?
  2. D

    Help With My Exam: Vibrations, Springs, Pendulums

    Yes I need help with my exam, my teacher gave us one day form making it and it guves us all the options we can have. So that is way I am asking for help. spring makes 12 vibrations in 3 seconds. 1
  3. Shackleford

    Schools Exam II frustrations (University Physics - Mechanics and Heat)

    Well, as I was driving to Wal-mart tonight, I began to think about a particular problem and realized I did it incorrectly. It was an Atwood Machine question. In writing out Newton's Laws, in a split-second decision, I didn't add the other mass when figuring out the acceleration of the system...
  4. Shackleford

    Testing Very disappointed and frustrated with Exam One

    I'm in University Physics I - Mechanics and Heat. The exam had six problems, and I made stupid, careless mistakes on 3 and ended up with an 85. I should have had an A. It was over probably the easiest subject matter of the course: Math Review, Velocity and Acceleration, and Vectors. I'm frickin'...
  5. K

    Understanding the Solution to an AP Physics C Exam Problem

    [SOLVED] Help on an AP exam problem I teach AP physics in high school and encountered this problem, from the 1982 AP Physics C exam. http://keydetpiper.com/Misc/1982C.html" has a link to the original problem (#2) and the official solution. My question is regarding part c: how is it possible...
  6. F

    Linear algebra (trying to prepare for exam)

    Ok, here we go. The question asks, for matrix A = 1 1 3 3 0 1 2 2 6 , find a vector b such that Ax(x is a vector) = b has no solution. I found the rref(a) = 1 0 1/3 0 1 8/3 0 0 0 Now to, answer the question, I gues the equation has no solution if one of the rows...
  7. K

    Understanding Rate Mechanisms: Exam Preparation Tips

    I totally can't figure out rate mechanisms for whatever reason. A three-step mechanism has been suggest for the formations of carbonyl chloride: Step 1 Cl2 -> 2 Cl(fast, equilibrium) Step 2 Cl + CO -> COCl (fast equilibrium) Step 3 COCl + Cl2 -> COCl2 + Cl (slow) What is the...
  8. M

    Exam coming soon, need help with this question

    Exam coming soon, need urgent help with this question! Homework Statement A body leaves a point A and moves in a straight line with a constant velocity of 40m/s. Ten seconds later another body which is at rest at A is given an accelleration of 2m/s[SIZE="1"]2 and moves in the same direction...
  9. G

    Possible Integration by Parts Exam Practice Problems

    Homework Statement Got an exam later today on this, just looking for some practice. I know this is kinda reverse of what the forum is intended for, but I'd like to ask for people to post some problems that I can solve via Integration by Parts. Just like 5 or so. Homework Equations...
  10. S

    Testing AP Calculus AB Exam: Advice Needed

    Anybody taken the ap calculus ab exam? I'm taking the class right now, just curious to what you think about the exam. I expect it to be rather easy. ap calculus seems oversimplified. advice?
  11. P

    Testing Prepare for AIPMT: Get Notes, Papers & Arihant E-Book

    i m preparing for AIPMT ,so please tell me where cud i get essential notes,past years papers n e-books on it.can anyone giv link to Arihant Plant kingdom e-book,please i need it.
  12. E

    Learning Optics, SR, and Continuum Mechanics for Physics Qual Exam

    I need to learn optics, SR and continuum mechanics for my physics qual exam in June. Can anyone suggest some books that would be appropriate for self study?
  13. L

    Exam Question Help: Solve Force/Acceleration Problem w/ g, Sin30, Cos30

    Homework Statement Info : g=10ms^-2 Sin30=0.5 Cos30=0.866 http://img227.imageshack.us/img227/8332/xfgdda0.jpg A box of mass m = 50 kg is initially at rest at point A on a floor with coefficient of kinetic friction μk = 0.1 (see figure below). A person starts pulling the box for...
  14. M

    Programs UK PhD Students: Exam Requirements for Physics Areas

    Do PhD students in the UK have to undergo exams on important areas of physics (e.g. EM Jackson-style) not necessarily related to their area of research the way that American grad students do?
  15. D

    Grading Exam Papers for Professors

    I found the following link which clearly delineates and explains how exam papers are graded by professors: http://www.concurringopinions.com/archives/2006/12/a_guide_to_grad.html
  16. Q

    Calculating Probability of Excited State of Harmonic Oscillator

    Harmonic Oscillator 9. An ideal harmonic oscillator has energy levels separated by a constant 0.05 eV. That is, the difference between the ground state and the first excited state of this oscillator is an energy of 0.05 eV. This single oscillator is brought into contact with a large solid...
  17. Math Is Hard

    Final exam ruined by a catchy song?

    if you have an exam in the next 24 hours, please don't click the link in this post. In fact ..don't even read the URL. It's too risky. Just walk away and don't look back. I told you not to even come in here, but you just had to, didn't you...
  18. D

    How Did Others Fare in the Putnam Exam Yesterday?

    Did anyone else toil away for six hours yesterday at the Putnam exam? I'm fairly confident that I got a couple. ________ A1: Find a where y=a x^2 +a x + \frac{1}{24} and x=a y^2 +a y + \frac{1}{24} are tangent. This was easy, once you recognize that the curves could only intersect (i.e...
  19. X

    Did anyone here take the Putnam exam this weekend (or administer it)?

    Did anyone here take the Putnam exam this weekend (or administer it)? What did you think?
  20. N

    GRE Math subject exam Prep- Pre-calc

    GRE Math subject exam Prep-- Pre-calc For those of you who are preping, or have taken it already, what did you use to prep for the pre-calc section of the GRE subject exam in math?
  21. B

    How do i solve this question? please maths exam tm?

    How do i solve this question?? urgent please maths exam tm? The question is: The perimeter of a rectangel is 140cm. The length with width ratio is 4:3. Find the area?? Could someone please help me with this question??
  22. A

    Searching for AP Physics B Exam Past Papers

    Hello, I'm looking at the moment for past papers for the AP Physics B exam (apart from the ones in www.collegeboard.com). If any of you have anything to offer or know somebody please pm me. I need practice questions as I have not been doing great lately on the course. Thank you!
  23. E

    Solving Question B3 from the 1999 Putnam Exam

    Homework Statement At this link, in the solution to question B3, http://www.unl.edu/amc/a-activities/a7-problems/putnam/-pdf/1999s.pdf how did they get the second-to-last equality? Right above the words "and the desired limit is"? I tried factoring every way I know how and it did not work...
  24. JasonJo

    Testing My GRE Math Score: Impact on Admission Chances & Selecting a Safety School

    I just took the GRE math subject exam and it is safe to say I bombed it. I especially bombed it because a great score would've solidified by GPA along with my 3 letters from 3 professors I have done research under. A lot of people have been telling me it's not terribly important, but I have...
  25. C

    Preparing for Optics Exam: Solving the Refraction of Light in Water Problem

    Hello, first time poster. I'm in an optics class because I thought it would be fun, but I'm having a terrible time. And I didn't do so well on the first test. The second test is tomorrow and I want to do well on it. We were given a practice exam with 3 questions. I got two of them, but the third...
  26. A

    Schools My First Physic exam at university

    I'm at chemical engineering as beginner.I will have my first physics exam on 17 November and I can't decide how I should study.Exam includes these subjects: Physics and Measurement, Motion in one Dimension, Vectors, Motion in Two Dimensions, The Laws of Motion, Circular Motion and...
  27. E

    Solving Problem from 2003 Putnam Math Exam

    Homework Statement Here is the problem. http://www.unl.edu/amc/a-activities/a7-problems/putnam/-pdf/2003.pdf Here is the solution. http://www.unl.edu/amc/a-activities/a7-problems/putnam/-pdf/2003s.pdf How can they assume, WLOG, in case 2 that B = 0 and A => a > 0 ? It seems to me like...
  28. S

    I want to ask you about exam questions about wave and light

    I want to ask you about exams series article wave and light That helped me And if there were questions, please give me the explanatory thanks
  29. P

    What Are Some Common Trigonometric Simplifications and Derivative Rules?

    different (easy) math questions before my exam :) 1. 1. Homework Statement : Write as simple as possible: 2 sinv cosv-sinv ------------------ cos^2v-sin^2v-cosv+1...
  30. A

    Derivative Formulae for Continuous f(x) on [0,1]

    Homework Statement Question 5(10 marks) Assume that a function f(x) is continuous on the interval [0,1].Express the following derivatives as formulae in terms of x,f(x),f'(x) and \int_{a}^{x}f(t)dt a)\frac{d}{dx}\int_{x}^{0}tf(t)dt b)\frac{d}{dx}\int_{0}^{x}xf(t)dt...
  31. A

    Testing How important is FE exam, really?

    Our school requires the students to take FE exam before you graduate. I mean, of course, it would be helpful if you become a licensed engineer, but our school puts it as if you cannot get a job without passing the FE exam, which probably isn't true. Having that said, 1)How important is FE...
  32. F

    Help with these two exam questions

    I had these two questions in an exam and do not know how to find the answers... find (f-1)'(3) for f(x) = sqrt (x^3 + x^2 + x + 6) and the int of x/(x + 4) dx If anyone can get me started on these and show which steps I have to take, that would be great...
  33. P

    Testing Where Can I Find Resources to Prepare for the Putnam Exam?

    Hey, I'm currently preparing for the putnam exam offered by MAA at my college. However, I am finding an added difficulty from not having a diverse enough knowledge of mathematics to actually atempt some of the questions. As it stands on average I can attempt seven out of the twelve problems...
  34. T

    Calculate work when winding chain (GRE Problem 66 - Exam 9277)

    This problem is in a GRE exam which I think might have big mistake in forming the answers: A thin uniform steel chain is 10 meters long with a mass density of 2 kg per meter. One end of the chain is attached to a horizontal axle having a radius that is small compared to the length of the...
  35. H

    How Do I Determine Oxidation Numbers for Chemistry Exams?

    Well, well, well, I am currently going to have Chemistry exams in a few days. I have something of a lot portion to study. I really get confused with the determination of Oxidation No. despite the methods shown in textbook! I have a chapter relating to basics of Structure of an Atom. Now in this...
  36. C

    Help with vector exam questions (M1)

    Hi. I have no idea how to even begin to do this question and so I would really appreciate any help. Two helicopters P and Q are moving in the same horizontal plane. They are modeled as particles moving in straight lines with constant speeds. At noon P is at the point with position vector...
  37. B

    Prep for Algebra Comprehensive Exam #4

    Determine the minimal polynomial f(x) over \mathbb{Q} of the element \sqrt3 + \sqrt7 . Determine the Galois group of f(x) and all the subfields of the splitting field of f(x) . SOLUTION This one seems pretty straightforward, I just need checks on my reasoning. I apologize in...
  38. A

    Testing Expert Tips for Tackling Optics, Nuclear, and Particle Physics in Exam Revision

    Hey I have a Physics exam in a week’s time which covers Optics, Nuclear & Particle Physics. They are all third year courses and the exam itself is one that I really need to pass – and get a good grade in. I have been revising for about two months but I still can’t say that I’m comfortable...
  39. S

    Testing Physics I - Final Exam - In 2wks

    Hey friends from the phyics forum... I have been recently struggling with physics I all semester... and now I am already to the Final Exam which is 50 questions - multiple choice and it is worth 50 % of my grade. Which to me is like basically passing or failing the class and having to repeat it...
  40. B

    Prep for Algebra Comprehensive Exam #3

    3. Show that the polynomial p(x) = x^4 + 5x^2 + 3x + 2 is irreducible in \bbmath{Q} [x] . This on has me totally stumped. I've seen many other problems on polynomial reducibility, but they are all solvable by Eisenstein, or by checking for irreducibility in a quotient ring by a proper...
  41. B

    Prep for Algebra Comprehensive Exam #2

    2. Let R be an integral domain containing F as a subring. Suppose that R is finite-dimensional when viewed as a vector space over F. Prove that R is a field. SOLUTION I will show that \forall \ r \in R, (r \neq 0), r is a unit. Equivalently, \forall \ r \in R, (r \neq 0), \exists \ s...
  42. B

    Prep for Algebra Comprehensive Exam #1

    I am currently studying for my Algebra comprehensive exam which will be given at the end of August. As part of my materials, I have several old exams, minus the answers. I would like to post my solutions here to see if they are accurate. I am posting here rather than in the homework...
  43. S

    How Much Commission Does Peter Earn from Real Estate Sales?

    Hey, I've decided to give myself some things to work out., in preparation for my Exam. Obviously it's not any questions from the exam, how would i have got ahold of them? They may seem easy, but some people do happen to be Dyslexic: Peter works as a real estate agent and is paid commission at...
  44. T

    How Do You Calculate the Volume of a Solid Revolved Around the X-Axis?

    Homework Statement Fine the volume of the solid generated by revolving the "triangular" region bounded by the x-axis, the line x=PI/3, and the curve y=tanx in the first quadrant about the x-axis. Homework Equations volume of revolution using disk method =integration (PI*[r(x)]squared...
  45. J

    OCR Exam Past Papers & Mark Schemes: Physics A 2006

    Hello People! Could somebody help me? i am looking for OCR exam AS past papers + mark schemes for last 7 years but i need some other web page where i can get it free...not www.orc.org.uk i am really dissapointed because i need to fine them and what i really need...
  46. B

    Need Comprehensive highscool algebra exam

    Hi, I am trying to relearn algebra and i haven't studied in many years. I was hoping someone knew of an online exam that i can download and printout that covers most if not all of elementary algebra topics. There are many example questions online using applets ect buy i would like to print...
  47. P

    Why am I struggling with multiple choice exams in A level Chemistry?

    :frown:I just got the results from a mock exam that actually counts towards next year... I got 82%. However everyone else got 95+! It is the multichoice - I got 14/40 for it! The structured theory - I got 98%. Does anybody have any good sites or tips to combat this Multichoice problem I have...
  48. C

    How Do You Calculate the Height of a Tower Using Angles of Elevation?

    Homework Statement A surveyor on the ground takes two readings of the angles of elevation at the top of the tower. From 150' apart, the measures are 50 and 70 degrees. Find the tower's height to the nearest foot. Homework Equations The Attempt at a Solution
  49. F

    Preparing for a Physics Exam: Two Weeks and Counting

    I am in my final year at high school and i have choosed physics exam, there left only two weeks until it, have anyone ideas how to prepare for it in such a short time?
  50. L

    Compilation for old exam, need advise for solutions.

    Homework Statement Information: The gravity defines the point of equilibrium for the system. The mathematical models you are to find are all movements around the point of equilibrium. The force of gravity is NOT to be included in these models. Numbers used throughout the exercise...
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