Exam Definition and 920 Threads

Well I am having my exam tomorrow over special and very basic general relativity. I have one area I am still a bit fuzzy on now that I look back at our last exam. I am confused on when you can use just Lorenz time dilation/length contraction to when you need to use the full Lorenz...

http://www.signonsandiego.com/news/education/20060209-0016-ca-exitexam-lawsuit.html So ... do you think an exit exam is "illegal [and discriminatory]" ?

Ok so my exam is here tomorrow and I don't feel like I have the grasp on SR I would like to have, most of the books I ordered recently got here so I haven't had time to read them yet. So if I could get any help with some questions I would really appreciate it. 1.) When using the general...

Is there a place i could find the qualifying exam questions from the past years for practice?

I've been revising for my exams with past exam papers supplied by my uni, but they don't supply the answer schemes for them. Would some of you guys look at them for me if I put the question and the answers I get? Thanks 1) i) calculate the change in length of a 1.5m long copper bar when...

Hey PFers, How do you study for exams? I missed my physics and math exams (gr 12/IB HL material) in early december due to Bronchitus and now I have to write them in January. What methods/strategies do you use to study for these subjects? Physics there is both conceptual and applied type...

very depressed... Hi all.. Just finished my thermodynamics exam...do badly...not expected to be that bad... I used to score greatly in the first year...I got A+ in nearly all courses.. But this time...I am afraid that I would probably get a D or even worse...how can i accept this...sigh...

Two 10-kilogram boxes are connected by a massless string that passes over a massless frictionless pulley. The bxes remain at rest, with one on the right hanging vertically and the one n the left 2.0 meters from the bottom of an inclined plane that makes an angle of 60 degrees with the...

okay this is really retarded. but i actually got stuck on this question today. i think it went something like: a car accelerated from rest and traveled 81 meters in 9 seconds. what was its acceleration? it was like the simplest Q on the exam. but i cept thinking it must be 9m/s/s because in...

I'm Done! It's all OVER! I wrote my last exam today! I can't wait to start my next term though with my new organization skills. I started getting organized half through this term, and I have to say it paid off. I had no choice to organize myself because I was working like a madman, but I...

What is the best way to study this subject?

stokes theorem says \int_{S} (\nabla \times G) \bullet dA = \oint_{C} G \bullet ds where C is a closed curve bounding the open surface S. Note : dA =n dA, and ds = t ds use stokes theorem to prove that hte Faraday law of induction \oint_{C} E \bullet t ds = -\frac{d}{dt} \int_{S_{C}} B...

My physics professor attempted to teach two chapters of new material within two class periods, but unfortunately this is not enough time to cover the material as in depth as we will be tested on. Exam is this mon and I am very confused about the things he did not explain - I feel like he left...

Hey, These questions are in my textbook and seeing that I have an exam coming up any help with these problems would be greatly appreciated. 1) A space shuttle is located in 'deep space', where the effects of gravity can be neglected. It has a mass of 120 Mg, a centre of mass at G, and a...

Would you pass? I don't know if I would or not... Snopes has an interesting commentary on the exam: http://www.snopes.com/language/document/1895exam.htm

Please refer to page 6 of http://www.physics.usyd.edu.au/ugrad/jphys/jphys_webct/jp_exams/1902_exam_2004.pdf I'm quoting from the solution guide: http://www.physics.usyd.edu.au/ugrad/jphys/jphys_webct/jp_exams/1902_exam_solutions_2004.pdf P_1 = P_A + \rho g y_1 and P_2 = P_A +...

Could someone please just give me a hint to get started. \frac{dy}{dx}-\frac{y}{x}=\frac{y^2}{x^2} for x>0 thanks Skook

Help Exam Tmr! 112 Physics *FORCES* As you may have guessed from the title, I'm in a bit of a bind here. You see the website with the answers to the review questions I'm working on isn't working... and there's an exam tomorrow. Here's a few of the questions any help would be greatly...

Hi all, i am currently studying for an exam, and so i am going over the questions in last years exam. Unfortunately we were not given the answers, so i am not sure whether i am getting the questions right. If its not too much trouble, and someone has a bit of time to spare, could they verify...

I had a midterm today, and I think I did bad on it even though I studied hard for it. When I first glanced at the paper, I knew how to every problem. But when I started to each problem, my neck started to go stiff, and I couldn't think properly. It seems as if though everything I studied...

Hello everyone, This problem is bugging me because the professor showed me this is how you do it, the day before the exam, so what do i do? well I do it the way he told me, and I totally miss it. Here is the problem: I'm going to let f(x) be the function to make it easier to read: f(x) =...

I will be a freshmen next fall and am interested in taking the Putnam, even if I won't do very well. Can someone suggest a good book I can begin working out of now so I can prepare? Thanks.

ODE Exam! A simple ODE...please help! I've got a midterm exam later this morning on ODEs. I know how to solve second-order and higher ODEs with constant coefficients, but what about variable coefficients?? Can someone please walk me step-by-step through the solving of: y'' + A(x)y' + B(x)y...

Hello everyone! I need to seee if i did this problem right...The answer isn't in the back of the book and I'm studying for an exam! here is my work and problem: http://show.imagehosting.us/show/775021/0/nouser_775/T0_-1_775021.jpg if that link is slow check this one...

Hi all! This is my first post... so have mercy on me o:) We had an exam from computer technologies today and there were only 8 of us loosers who still didn't pass it :blushing: and no one is sure about the correct solutions: 1.) What is wave frequency of 0,5m long whistle sound? What is...

I have a system of equations 2x + 4y - z = 2 x - y + 2z = 1 I need to find a third equation so that there is a unique solution for the unknows x , y and z, and find them. Please help Thanks,

"You are locked in a 50x50x50-foot room which sits on 100-foot stilts. There is an open window at the corner of the room, near the floor, with a strong hook cemented into the floor by the window. So if you had a 100-foot rope, you could tie one end to the hook, and climb down the rope to...

I would like to know if a free copy is available somewhere. I would also be interested in a free PE exam for electrical engineering. Thanks.

I need to prepare for a very important exam in 6 months and I'd like to start training sometime in October. If I really needed to consume a lot of information in such a short amount of time - what is the best course of action? I've outlined a few possibilities, and I'd like to know your...

Hi, guys! :approve: My exam comes in one week, so I need your urgent help :cry: I found out, that one of the problems in the exam will be about convertion between rounds per minute (of a CD or HDD) and megabits per second (as reading speed). I have no idea what is the dependence between...

I'm ashamed. Brrr...Just that stupid examiner. :mad: He said to me "park where you can here on the right" and I was too sure of myself. I saw an empty place and I started to do the parking...till he told me: "stop boy, did you see that signal of parking forbidden here??". And that was the...

Dynamics Help. My exam is on Monday! My Dynamic's Unit Exam is on Monday and I need help! Last week I had my Kinematic's Unit Exam and my written was something like: How do you find the acceleration of a runner running the 100m sprint? Draw a sketch, list all the formulas you're going to...

:smile: :-p :-p :biggrin: WOOOOOOO I just opened my post and got my exam results! I passed them all with a grade ave of 83%, probably not the best but I`m very happy with it since i`ve beeen out of education for nearly 10 years and really got stressed over the thought of having to sit...

Electromagnetic radiation of wavelength 4.50 x 10^-7 m and intensity 800Wm^-1 is incident on the surface of a metal with work function of 2.02eV. Electrons are emmited from the surface and attracted to a positively charged electrode with a p.d. of 10V. Question: Assuming that each photon...

excuse me for my bad english, but I'm trying hard. 1. function f(x), for x>0 is defined with: f(x)=(x^4)^(x^2) ^ - potency find stationary points of the function f(x) on the interval (0,infinite). what exactly do i do here? do i use logarithm on both sides, and then i get...

Woo, this is on my final exam and i don't know if there's a formula or something to solve it. really need help. anything is appreciated. A converging lens with a focal length of 15.0 cm is placed 53 cm from a light bulb. Where would you place a screen to focus an image of the object? :rolleyes:

My final math exam is tomorrow, and I am having trouble with some questions as I go through this review package. I have the answers so its very frustrating to arrive at the wrong answer over, and over. Anyways the question is: The position of a bucket on a circular tar sands...

hi all, an intersting question in our exam today. we were asked to identify a material given these requiremets "that could have been extracted from product design specifications" "thermally non-conducting, strong at temperatures in excess of 600K, and optically transparent." any ideas?

Note : Please don't connect this post with my performance on PF ... :biggrin: Ok people , I am giving you some info : exams name-----students appeared------my rank(% of students behind me) AIEEE --------400,000---------13,600 (96.6%) BITSAT-------- 48,000----------- 3,500 (92.7%)...

I have a final exam coming up in a few days and I would like some help checking some problems that I have been working through.

I just did a test yesterday and there was a question about cathode ray tubes, it went soemthing liek this. Albert calutated the charge to mass ratio of the cathode rays to be 1.3*10^11 and his velocity to be 3*10^8. His answers didnt agree to that of the textbook. Marie another student...

Hi folks! I'm having my oral exam in physics here in Norway this tuesday. The theme for my exam is "tilting trains". Here is the translated assignement: What is a tilting train, and how does the physics behind the tilting work? Why is traveling with tilting trains more comfortable...

I just finished my last exam! I have 91 days of doing absolutely bod all now, (except for the L word, which I can't mention because Sticky Icky and Matthyioeuaouw will get all excitable). WOOOOOOOOOOOOOOOOOOOO!

I've taken the Caribbean Advanced Proficiency Exam in Math, Physics, etc. For physics the topics for unit two were: electricity and magnetism, electronics, and modern physics. The thing is I know the topics well but I just can't finish the exam (I don't think anyone did) but the thing is I want...

hi guys these were some questions i got wrong in a an exam, i was unable to attend the lecture following the exam so i am not sure how to do these two questions that i got wrong i have working, although it is to complicated to put on htis site if anyone can ghet an answer, that would be great...

I have to take this exam in order to transfer my community college organic chem. I need to score in the 75th Percentile (I have no idea what that might be, maybe everyone gets 100s!) So, anyone take it? How'd you do? Anything unexpected? Advice? I have ordered a study guide for it and I'm...

I've got an exam tomorrow and I'm scared. :cry: It's a practical and I've never done one before under exam conditions. I'm worried I'm going to knock everything over or forget where I am and start talking to people or something else dumb like that. I've got butterflies in my tummy. How does...

Hi guys I'm trying to prepare for an exam coming up (that time again :( ) and I've found a few problems in my textbook I don't really know how to do. I really need to do well on this so if anyone could help me out i'd really appreciate it! :D Question1> A curve has parametric equations: x...

hey I'm going through an exam paper and I'm having a difficult time working them out. any help will be greatly appreciated. thanks! the first question is for the size of an atom.. The second virial coefficient, B, at high temperatures equals half the excluded volume due to the repulsive part...

Hi, my exam is coming pretty soon and I looked at last year's exam and found numerous questions that I don't know. Could someone please check my answers listed below. A solution of any type is different from a compound because: (A) a compound is always coloured, solutions never are. (B)...