Olympiad Definition and 164 Threads

Is anyone solving the worlds physics olympiads (wopho) problems? If so, I suggest starting a disccusion about the problems to help each other. In my opinion the problems are difficult and hard just to even understand the situoations that are given.

Homework Statement Abullet of mass m strikes a pendulum of mass M suspended from a pivot by a string of length L with a horizontal velocity v0. The collision is perfectly INelastic and the bullet sticks to the bob. Find the minimum velocity v0 such that the bob (with the bullet inside)...

Homework Statement A car has an engine which delivers a constant power. It accelerates from rest at time t = 0, and at t = t0 its acceleration is a0. What is its acceleration at t = 2t0? Ignore energy loss due to friction. Homework Equations P=W/t, W=Fd, F=ma The Attempt at a...

Two streams of water flow through two U-shaped tubes (the two U-tubes are facing away from each other, but touching each other at the base of the 'U's). The tube on the left has cross-sectional area A, and the speed of the water flowing through it is v. The tube on the right has cross-sectional...

in the ques that i have attached as image with this thread.. I did it as an can be solved to \sqrt{}n by rationalising it. So as squre root of every natural no. 'n' is smaller than squre root of 'n+1' then in this ques. possible values comes out to be zero. Am i Right?

I have applied for this year's Astronomy Olympiad to be held on 28th November, 2010. I am 17 and study in my 12th grade. Now, I have just bought a Physics Olympiad book. Now, the problem is that I only have 9 days to prepare myself for the exam. Can anyone suggest on how should I go on to...

Hi, I am looking for a good online book in order to study analysis.. I haven't studied it at school, but I think that it will be useful during Physics Olympiad.. So what do you suggest me doing?

Hello! I am a high school student and I am preparing for physics olympiad and I need some help regarding resources. Talking about what I have done , I have read Physics by Resnick and halliday 5th edi both volumes.I have also read Thomas's Calculus(most part). and I am currently doing 'An...

Homework Statement Factor the equation (without complex numbers) a^{10} + a^{5} + 1 This is a olympiad question The Attempt at a Solution I substituted a^{5} = x getting a quadratic eqation. But when I factored the quadratic equation I get complex roots and this is against the question...

frustrated of maths olympiad! i am from malaysia, where there is lack of training for maths olympiad and the only one out there is far too expensive (arounds hundreds of ringgit) . To compensate this fact, i bought a locally written book about the basics of maths olympiad and it did not do any...

So my teacher entered me for the Physics Challenge for GCSE students(test from the makers of the Physics Olympiad, for gifted students), which is intended for students of 16 years of age; year 11. I'm 15, and I'm in year 10, so i don't know why my teacher entered me.. Anyway, I have to...

When a rubber balloon of spherical shape with un-stretched radius 0 r is inflated to a sphere of radius r ( ≥ r0 ), the balloon surface contains extra elastic energy due to the stretching. In a simplistic theory, the elastic energy at constant temperature T can be expressed by U= 4\Pi...

Homework Statement A friend of mine tried to classify for the IMO a few days ago (he didn't do so well). A problem he had to solve was: f(x + xy + f(y)) = (f(x) + 1/2)(f(x) + 1/2) I didn't really understand what he said later. First he told me to find the values of X and Y for which...

Hello, I have a question from the Dutch Astrophysics Olympiad, which I can't solve. " Is there mathematical proof that stars are still being formed? " In previous questions, i had to derive the following equations, which i need to use in my answer for the question above: L = σ * T4 * 4πR2...

Hey guys. I got a book that has selected problems/questions the from Russian/Soviet Math Olympics. Anyhow, I'm having trouble with a particular question that involves a quartic equation that, up to my knowledge, can't be factored. I was wondering if there are any tips or methods to solve for...

I am just learning about this and don't know if I am doing it right. I need to turn my car on with a push button switch and have it turn off when it hits another switch on the axle and turn on a light when the motor turns off. I made the circuit shown in my drawing but I have to hold down the...

I'm an 11th grader finishing Mechanics and Emag and I would like to ask you for your advice on textbooks and material I will need to cover to prepare for next years Olympiad. The book I used for Mech/Emag is by Tipler/Mosca. I have heard Halliday/Resnick is good but I don't know for which topics...

12. A uniform disk rotates at a fixed angular velocity on an axis through its center normal to the plane of the disk, and has kinetic energy E. If the same disk rotates at the same angular velocity about an axis on the edge of the disk (still normal to the plane of the disk), what is its kinetic...

Hello, I was just wondering as to how I can prepare myself for the F=ma contest and other preliminary competitions that are part of the physics olympiad. Besides doing past F=ma tests, is there any other way to prepare? (this question is specifically targeted to those who have...

http://www.princeton.edu/~jdpeters/docs ... piad99.pdf I can't understand why the answer is E. The velocity with which the ion enters the magnetic field is determined by 1/2 m v^2 = q V ans so v is proportional to sqrt(q/m). The radius of the arc in a magnetic field of strength B...

any suggestions?

Do someone have link where I can get problems and solution from Olympiad in Mexico. Thanks

I was looking at some of the questions from various competitions for high schools and colleges and their questions, and I couldn't begin to solve the majority of them. I was looking at http://books.google.com/books?id=B3EYPeKViAwC&printsec=frontcover&dq=Problem+Solving and I couldn't follow...

I'm not a natural at math, but I study a lot of it. So I needed something to prepare me for the math olympiads and competitions. Needed comments on this book for preparation: Elementary Number Theory by Gareth Jones...

I have heard many say that being able to solve Olympiad problems is by no means a prerequisite to becoming a good mathematician, physicist, etc. However, would one benefit from practicing math competition problems if he is older, i.e. undergrad level and on. Would there be any benefit to the...

Are there any free, online Math Olympiad resources for studying? These are the high school level math competitions. I'm not looking for past competitions, as much as studying/practice/explanation guides which review material, etc. I welcome any suggestions

What are the best books to use for preparing for the Physics Olympiad? I have University Physics and Fundamentals of Physics? Which one is better? Thank you!

any tips? What topics are usually covered in the qualifying exams? How is the level of difficulty? Is it harder or easier than Irodov's problems? Finally, what level of math is assumed? thanks.

Hi guys. I only recently heard about this competition calle the International Physics Olympiad and am really interested to enter. I am currently in Yr 10 and love physics. But i do not believe that i know enough of physics considering the standards of the education here. Please give me some...

Is there a specific book or website that i can use to help me get to the IPho. I haven't learned much physics.

i have heard of this contest. how can i prepare to go in? i am willing to work hard. i am going to be a freshman in high school next year.

These two problems are based one some data from an experiment. Of course, experiment often don't carry out perfectly matching theory... And I'm having some difficulty understanding the answer. Problem: The following information applies to the next two problems An experiment consists of...

hey guys, Ijust sent my regostration for Physics olympiad (US). Do you know if they count on postmark or the day the mail arrives to consider which one is late? Cause the deadline of payment is Dec 19.

So I read Irodov was the best prep for the Physics Olympiad, but what if I'm in Physics B and just completed a semester's worth of mechanics? I'm currently in Pre-Calculus if that matters. Another thread I read says most problems can be solved using differential eqs. but neither my current...

Anyone have suggestions for doing well in this competition in the US?

(Any number of options may be correct.) Three concentric spherical shells have radii r, 2r and 3r with charges q1, q2 and q3 respectively. Innermost and outermost shells are earthed. Then, (a) q1+q3=-q2 (b) q1=-q2/4 (c) q3/q1=3 (d) q3/q2=-1/3 The answer key tells me that (a), (b)...

Hey everyone, I would like to know if there are any physics texts out there which prepare people for olympiads? I googled but i didn't find much. I won't say excellent, but I'm a good physics student with an A average in class and I'm studying way ahead of my class. I am learning calculus and...

A rock is launched vertically. During the last second of the flight, the rock covers one-half of the entire distance covered during the flight. What is the maximum possible duration of the flight? (Hint: answer is not 2 seconds.) I've tried to use integration to solve an equation of motion...

Determine all pairs (x, y) of integers such that 1 + 2^x + 2^(2x+1) = y^2. ^=Exponent

If \alpha,\beta\ and\ \gamma are the roots of the eqn. (x-a)(x-b)(x-c)+1=0 then show that (\alpha-x)(\beta-x)(\gamma-x)+1=0

Consider five points A, B, C, D and E such that ABCD is a parallelogram and BCED is a cyclic quadrilateral. Let l be a line passing through A. Suppose that l intersects the interior of the segment DC at F and intersects line BC at G. Suppose also that EF = EG = EC. Prove that l is the...

Does anyone knows links for physics olympiads ,lecture notes,problems ech?

Hello, Does anyone know the rules for the math Olympiad? If you accelerated to University but are still "technically" in HS, can you still compete?

Homework Statement Q. Given that the population of Mumbai is about 13,000,000. Estimate the amount of tea that would be consumed by the city in a day? 2. The attempt at a solution Now at first place I could not understand why such kind of a question is given in Astronomy Olympiad...

a necessary and sufficient condition for becoming a good mathematician? The truth of the matter is that I myself am not good at these things. Fields medalist have previously been olympiad gold medalists eg Tim Gowers et al but there are counterexamples e.g Okunkov. So what is the truth...

Hi, I'm a 12th grade student from India, preparing for the Physics Olympiad. I've only a basic idea of Special Relativity, while the syllabus includes topics such as the relativistic Doppler effect, so I want to study up a bit. What text do you recommend? Please not one of those old texts...

Hi, everyone Next year I'm thinking of doing a Physics Olympiad course, and I'm just wondering if anyone knows a good way of becoming a physics genius in about the space of a year. I have all the Feynman Lectures but are there any other really good physics books that might be useful (perhaps...

Hi I wanted to know certain things about the Intl' Maths Olympiad. First, is the syllabus limited to Number theory,Geometry,Combinatorics and Algebra(inequalities and quadratics mostly) ? I mean is there no Calculus,Co-odinate Geometry,Vector and Complex algebra ,(considering trigo to be a...

Our school is going to the state Science Olympiad competition next week, and I am responsible for construction of our boomilever. Basically, it is a crane-like device; one end is bolted to a wall and the other end carries a bucket filled with up to 15kg of sand. I have been building and...

This problem deals with two main sequence stars in an eclipsing binary star system. I need to determine the system's peiod and separation (P and a). Right now i know that the brightest star has an absolute magnitude of -1 (219 solar luminosity), is 17,000 degrees kelvin, has a radius of 1.74...