Exam Definition and 920 Threads

I'm taking a combinatorics course this semester (from the math department), and my professor said the exams are usually devised so that the average score is a 60%, and then they're curved. I've seen this method of exam development with other professors, so I wanted to get some input to help...

HELP! Semester Exam on Monday! Homework Statement A missile is fired horizontally from an aircraft carrier in the ocean. Assuming the missile was shot from a height of 50m and a horizontal velocity of 200m/s... a. How long is it in the air? b. How far away will the missile land...

exam in 1 week and I know ziltch! please help. I need some really good guidance here Guys, I have an exam in 1 week and I am really bad at physics. My lecturer told the class to focus on: Forces and vectors moments friction inclined plains pin jointed frames. I know nothing about...

Homework Statement A full bowl cointains water, its mass is 395g.An iron screw is placed on the bowl and the mass is now 565g. This seemed simple, but I asked my teacher to clarify and he said that upon placing the screw on the water an equal volume of water is removed so the volume remains...

http://www.nzqa.govt.nz/nqfdocs/ncea-resource/exams/2011/90523-exm-2011.pdf can some 1 help me solve the following questio from here 1a,b 2a,b,d 3a,b,c http://www.nzqa.govt.nz/nqfdocs/ncea-resource/exams/2011/90521-exm-2011.pdf also help me solve question from here 1c 2bii 3...

An astronaut on the moon wishes to calculate the local g in the area. He sets up a wire with a mass of 1.7 grams and hanging from it an object with mass 4.98 kg. He sends some kind of pulse down the wire and calculates that it takes 40.86 ms to traverse the wire. What is g. You can neglect...

Homework Statement This is one of the three linear algebra scholarship questions given by my university last year. I've solved the other two, but this one is posing a bit of a problem. Question 1 on the file. Given that for a nxn matrix A both matricies A and A-1 have integer entries...

Hello guys, I have a physics midterm coming up on 11/29, and I am studying all day, everyday during this thanksgiving break. The reason why I am studying so hard is because I have never taken physics in high school, and now in freshman year of college, I am struggling with General Physics...

So this isn't really HW help, but I was just looking for general help for my next exam as to how to set up problems. The topics for the next exam are Forces and motion, kinetic energy and work, and potential energy and conservation of energy. The exam consist of 7 questions to which we have to...

Hey everyone, I'm trying to get prepped from my EE Professional Engineering exam and there is a question that I cannot solve in the prep-guide. I'm hoping that someone might be able to help because it can be solved in MatLab (as noted in the book). Here is the problem description: You are an...

115.4% lolwtf Thanks, people of pf, for helping me to understand the material!

Homework Statement Theorem: Given a metric space \left(X,d\right), the set of all limit points of a subset E\subset X, denoted E' is a closed set. I have an Analysis Exam tomorrow and have been studying for quite awhile and last week, my professor gave us a list of Theorems to know the proofs...

Homework Statement I just took the test, but I can't remember the question word for word, it was along these lines though: You are standing on bus. It suddenly brakes what is the force that makes you lean forward? A: Kinetic friction of your shoes on the bus floor B: Static friction of your...

From: http://online.wsj.com/article/SB10001424052970204644504576653004073453880.html": October 26, 2011 Highlights from the article: Chiefly, testing yourself repeatedly before an exam teaches the brain to retrieve and apply knowledge from memory. Practice tests also help with...

Hi everybody. I am going to exam on Monday. I would like to make a experiment on how to measure the coefficient of friction. I know, that I can find the mu(s), by taking the tan to the angle α. μs = tan(α). Is there somebody, who has some others ideas how to measure that? Somebody...

can someone clear my concepts about these two equations ? Equation 1... Concentration(g/dm3) = Concentration (Mol/Dm3) % Mass Of 1 Mole Of Solute Equation 2... Number Of Moles Of Solute=Concentration(Mol/Dm3) x Volume In Cm3 % 1000cm3 reply quickly.. got my chem school exam tommorow...

The question is: let V1=(2,2,0), V2=(-1,2,1), V3-(1,1,4). There three vectors determine a parallelepiped. P draw it. (a) (this is the one that is giving me trouble) Determine the length of its main diagonal. (from origin to opposite vertex). I can't seem to figure out what it means from...

So a lot of my engineering friends not in EE are required to take the FE exam, but I noticed that it was not required for my major. I am graduating in December, and so far out of the dozens of companies I have applied to only 1 has asked me to take the exam. I guess I am wondering is why...

Hey, I've been going through a few past papers for an upcoming exam on complex analysis, I found this T/F question with a few parts I'm not confident on, I'll explain the whole lot of my work and show.[PLAIN]http://img404.imageshack.us/img404/2069/asdasdsu.jpg a) |2+3i|=|2-3i| so false b)...

Homework Statement ceiling light are connected in a parallel circuit, if one of the light bulbs burns out, will the other two bulbs be brighter? pls help me >.< my science exam is tomorrow.:(

Ok so I have a huge exam tomorrow on head and neck anatomy :cry:. Learning the cranial nerves thus far has been a beast. I just wanted to make sure I have this correct, ALL somatic cranial nerve fibers, and ALL sympathetic cranial nerve fibers are postsynaptic correct? The only nerve fibers...

Homework Statement Given x+y = 6\sqrt2 a + b = 6\sqrt 2 Find minimum value of \sqrt{x^2 + a^2} + \sqrt{y^2+b^2} 2. The attempt at a solution I had plotted the f(x,y) with constant a ,b And that's all. I don't realize how to do this. Any comment will be appreciated

This was a problem on a midterm I just took. Homework Statement Let f and g be linear transformations such that f: C^n ---> C^m is injective and g: C^m ---> C^n is onto (C = complex numbers). Prove or disprove with a counterexample: g composed with f is an isomorphism. The...

Have my first physics exam Thursday which I am told consists of 6 questions and one proof. I am curious on thoughts of what a proof on an exam may consist of, and it there is any pages or books I could reference to give me some basic proofs or ideas of what I may see on the exam and how to...

http://spectrum.columbiaspectator.com/wp-content/uploads/2011/04/harvardexam.pdf Ok, so the Latin and Greek sections may be outdated, but everything else is still fair game for today. Brutal test.

F(x) always exists and is differentiable as long as f(x) is continuous. Do you agree?

Hello all, I've got a question for folks who have taken the FE exam. I've been doing some thermo prep questions, and I've come across several sample questions (Non-NCEES written) that give properties of steam at odd points, say 1.8 MPa. In the reference handbook I'm using (2008; the 2011 PDF...

How often do you have post exam anxiety? I have most often. After I give my exam , i keep on guessing the marks that i will score. If the guess oscillates around pass marks, then it makes me more anxious and that harms other exam I give.

Homework Statement From an exam in calc 2 we are reviewing simple integrals. This one was annoying because it actually contained algebra.. regardless. \int(\frac{1 - y^{2}}{y^{2}})^{2} dy Homework Equations The Attempt at a Solution First I broke it into two fractions, and...

Homework Statement A person throws a ball with 13,5 m/s straight up. Calculate the maximum height that it will reach from the point where it was thrown. Also find the velocity when the ball is 1.50m above the starting point. Sorry if the problem is hard to understand, had to translate it from...

Im planning to take the FE exam and would like to get some info. For one, is this a standardized exam in that the questions are generally taken from the same bank (similar to the way FAA knowledge exams are) or is each FE exam individually created and used only once? I just want to get an idea...

[b]1. I have two calculators. including the Texas inspire cx. I can't make either of them work reliably on trig questions. I have an exam sunday and i need to be sure how to use my inspire. [b]2. Summation: [50][0.5] + [50][0.07cos35] + [100][0.1cos35] = 13.55 [b]3. Now i got this formula off my...

Well folks, I will be sitting an exam tomorrow morning at 9am in which I have to travel 2 hours prior and maybe fit in an hour of revision. Anyone recommend good energy sources for the 3.5 hour exam? :-) I was thinking redbull drink...:devil:

Homework Statement find the integral from 0 to 3 of (5x^2+30)/(x^4+13x^2+36) Homework Equations The Attempt at a Solution I thought it may be an integration by parts question, so I tried that first, but the book says that I should be using substitution. So I tried using u=x^2...

Dear sir/madam I have tried to do this question but can not figure it out. I gave up, but google gave me physicsforums site. I am very greatful and thanks for being genorous. Thanks. question is attached

Hi My exam to qualify for PhD status is coming up soon and I'm intending to retreat into the wilderness for some serious focussed study. I was wondering if anyone had any tips or suggestions for how I should approach this study. I intend to spend the last week on the past papers but for...

Hi, I am a recent grad with a BSEE and I will be taking an exam for a job. The exam will consist of the following: RF Microwave Devices, Digital Devices, DC Electronic Theory, Electronic Measurements, Electronic Math, AC Electronic Theory , and Active Devices, I have knowledge of...

Hello! My exam is tomorrow... Help will be much appreciated... Say l=0 is given. My hemiltonian is \bar {H}=\frac {1} {\hbar} \Omega (\vec {n} \cdot \vec {L})^2 And we use "base states" that are L_z eigenstates, |1 m> n is a general direction unit vector. Now, I am looking for...

I have an exam coming this week and the book I use is Fundamental of physics 8th edition. Chapters include from 30 - 36 Induction and Inductance Electromagnetic Oscillations and Alternating Current Maxwell's Equations; Magnetism of Matter Electromagnetic Waves Images Interference...

Calc 3 exam tomorrow! Check my solutions please! Takeing a practice exam but don't have the solutions, anyone who could verify my solutions would be appriciated! First problem Find the scalar equation of the plane that passes through (2,-1,0) and is perpendicular to the line x=1-t...

This is ridiculous. I couldn't decide where to post it, as it is a little bit about politics and a little bit about stastics, so there are reasons to post in other forums as well. It can be even a brain teaser (see the question at the end of the post). For those of you who don't know -...

exam problem : solve exponential withh ... log? This one is killin me! 36^x-6*6^x=-9 please show and explain steps

Homework Statement See attached file for relevant questions. I'm finding the Op-amp questions in section A very difficult. Any help with these questions would be much apprietiated. Homework Equations The Attempt at a Solution

Implicit => inverse function theorem (urgent due to exam, please help) Homework Statement Prove the inverse function theorem, knowing the implicit function theorem. Homework Equations The statements of both theorems... Can't think of much else. The Attempt at a Solution...

Hello friends .. I did a physics exam last week and had many doubts on questions 1 - d) e) and 2 - b) c) ... I tried to solve the test at home but I could not .. if someone can give a help I would greatly appreciate it! items d) and e) the question is a damped harmonic oscillations on the fluid...

Hi everyone. I'm currently preparing for my upcoming mid year exam which examines: -motion in one and two dimensions -electronics and photonics -special relativity. I am in year 12, so I was hoping that you may be able to recommend some free exam papers/ any resources that could...

Hi everybody, I've got a thermodynamics exam coming in a few weeks. I couldn't sit the exam when I took the subject 12 months ago because of work commitments so I'm sitting a deferred exam this semester. Trouble is I have forgotten most of it, and having difficulty getting help from lecturers...

Homework Statement [PLAIN]http://dl.dropbox.com/u/14490370/bjt.png Homework Equations beta=Ic/Ib By 'ON' I think the lecturer means the saturation region and by 'OFF' he means cut off. The Attempt at a Solution a. My reasoning is Ib= (Vs-Vbase...

Hello everyone, sorry if this is posted in the wrong section; I just signed up. Homework Statement Okay, so the question in my textbook is: "A car engine needs 1000W to start it. The starter motor supplies this power. The starter motor is 80% efficient and it runs off a 12V battery. a)...

http://min.us/lcyfgi My physics teacher told the class that this question had no valid answer choice (none of the choices were right). After further research at home today, I think the answer is (2) - or the wavelength is equal to the distance between A and C, as...