Exercises — 166 discussions

A Guide to Programming in Java by Lawerenceville Press exercises?? KK Nevermind.

I am getting fat. Since I graduated college, I don't know what to do and I don't really know anyone to work out with. Here's the thing: I can't run or do elliptical machines. I just get so bored and I can never commit to it. I love racquetball, but I don't have anyone to play with. Can...

My physics teacher has informed us that for our mock waves exam we are going to be given some relativistic questions on doppler shift, as an experiment by our loving masters. We derived the Lorentz factor and some shift equations, but we haven't done anything else and I'd really like some...

Can anyone help me out, I don't want study material, I just want some exercises that help me know what the SAT looks like

In the subject accelerometer (see link) the answer given is a = kgx. I get a = 2kgx. I'm wondering if anyone cares to discuss this problem. The answerer used an energy argument that I'm not sure I followed, whereas I used a simpler force-balance method. F = force on bead by parabola and is...

I know my question is not clear.All I want to say if genius ones can solve any exercise of textbook without any problem I mean without having a problem at one of the sub exercise.

Hello, I'm looking for exercises and problems about the Friedmann equation. For example: calculate the redshift, H0, scale factor, temperature, horizons etc given the model of universe. Does anyone know some website, or professors homepages, in which i could find this stuff? Thank you :)...

Hi, I'm learning special relativity with a book which doesn't include any exercises:cry:. Can anyone suggest me a book which includes - many - exercises (only) about SR (eventually with GR) ? Oh, and, with solutions ! Thank you.

I'm trying to google for some but results often lead me to forum questions, theory articles, etc. Basically I'm looking for circuits questions with parallel voltage sources answers, where I am supposed to do the work to find out the solution for the current.

Homework Statement Calculate the ratio of scattering cross sections for hadron and muon production \sigma(e^{+} e^{-} \rightarrow hadrons) / \sigma(e^{+} e^{-} \rightarrow \mu^{+}\mu{-}), just underneath and just a bit above the threshold for quark production t \bar{t} (Note only the...

hello there, I have started to tackle the giant book Gravitation by MTW on my own. I would like to see how you people who are having fun in reading this masterpiece faring in solving the exercises. I have read some books on tensor analysis and differential geometry and spacetime geometry as a...

Hello guys I'm totally new to MATLAB and i would like help solving the problems i have with my homework,I have these two excercises and don't even know where to begin 1st: When a dc voltage E volts is switched on a cross a series RC circuit at t=0(s),the variation of the capacitor voltage...

Hello, I haven't been able to find a good book. Could you please suggest some good books with solved exercises on Calculus (starting from limits, etc..)?

Homework Statement The person in figure 8.31 weighs 800 N. the forces F1 and F2 have magnitudes of 100 N and 900 N respective. Assume the force of gravity acts downward through point A as shown. Determine the net torque on the person about axes through points A, B, and C perpendicular to the...

Homework Statement Problem 1 Find the equation of the tangent line on the following points of the curve. f(x) = \frac{1}{x - a}, a \in \mathbb{R} - \left \{ -2; 4 \} \right; x = -2, x = 4 Problem 2 Find the equation of the line normal to the tangent line on the following points of the curve...

I am currently studying geometry and topology (with applications in physics) from the books T. Frankel "The Geometry of Physics" and M. Nakahara "Geometry, topology and physics" Both these books work pretty fast up to a sophisticated level, and I am lacking in practice. I can easily...

http://www.betaller.com/whyitworks.htm Greetings, PF community. Certain product has come to my attetion, as it claims to be an exercise and health guide to grow up to 3 inches in an average period of 5 months (depending on the effort you put on it). The whole thing has to do with...

I am studying Lie Algebras at home by my own, without access to any teacher. Being autodidact, it would much help me to have a book with solved exercises of Lie Algebras or Lie Groups. Does anyone know if is there any book that could help me solving problems, execises? Thank you, Luis

At my University, we get (in Experimental Physics) weekly homework which consists of three exercises with 3, 3 and 4 points (thus giving a total of 10 points for each sheet). Now I have received the sheet for the next week, on which the third task is "Oil Drop in an electric field". The first...

Hello, everyone I began reading Lectures on Physics from Feynman. But there is a problem: Those books haven't exercises. Can anyone tell me a (several) book(s) of exercises solved and proposed (with solutions) to accompany those Lectures step by step? Thank you very much for your help...

Hi, I just ordered the Exercises for The Feynman Lectures on Physics and although the exercises in them appear to be very interesting, most of them come without answer. I'm just wondering if there is someone with answers to all of them or if there is a book or website which has them. Thanks

Hello there. Monday I will have a test for physics about drawing force vectors on objects. The problem is there are not many exercises in the book I can practice with. So does anyone know a site or something where I can find exercises on how to draw the vectors? I am really sorry if this...

Hi First of all I'd like to say that I don't want to put this under "Homework help", because its not really homework. But it is something I can't wrap my mind around. There are 2 tasks: 1) There's 200 cm3 water in a glass. How high does the water level rise / how much does the cubage...

I took a year-long regular chemistry class at my high school last year (should have done AP then...), and it was extremely slow-paced and boring. That pretty much crushed my enthusiasm for the subject until I started reading Linus Pauling's textbook...

Are the simple uniform rates problems practical for anything other than for applications like inlet and outlet pipes filling or draining a reservoir? The kind I mean are the ones which immediately yield rational equations immediately upon first analysis. We find motion problems, we find...

Hi guys, I am looking to find some exercises, preferably online to practice Mathematical Proof by Contradiction. I have just finished my A-levels in the UK doing Maths and Further Maths and very little is done in the way of mathematical proof. The is only a single chapter on proof by...

As the title says, there are no answers for the book I'm learning C++ from, should I ignore the exercise section (well except the first exercise which is always compile and execute chapter examples) and move on or give them a try? I can get my hands on many exercises with solutions, but I'd like...

√x2 + 1 + √x2 – 2x + 3 = 3 │ x-4 │ - │ 2–0,5x│ ≤ 3 │5- x2-6 │= x2-5x-6 x2-2x+3 : x2-4x+3 > -2

Dear all, I'm reading the GR book by Ray D'Inverno. I would like to do some additional exercises about tensors. I can get the Schaum Outline on tensors. Is there any other book or online resource where I can find additional exercises to get more familiar with tensor manipulations? Thanks...

Many people I know advice me that doing eye exercises will help improve my vision and if I do them for quite some time, that I will not need glasses any more. Is this true? When I google this, all I get are advertisements.

Hey everybody, i am studying physics and i have just managed the first semester. I want to train my math skills a little bit now. Therefore i would like to have some exercises (with solutions) in math for the second and third semester. I would like to have some online stuff (but good books...

Hi Can anyone recommend a book for me to go to for an introduction of lattice theory that has exercises? I am trying to get a good grasp of differences between lattices, boolean algebra, infimum, supremum, etc Would appreciate some help Cheers

Hello I need a lot of exercises and problems on SUSY (supersymmetry). Do you know any good (and complete!) website where to find them? My teacher in the phD only gives us theory. Thanks!

If there some one can help me to explain some examples and Exercises with there solution in Laplace integral transform and fourier integral transform , and If possible, make a Simple compare between them.

Hello, do you know any websites on the internet with exersices and solutions in theoretical physics? No matter which Topic. Mathematical methods, Mechanics, Elektrodynamics, Quantum Mechanics,... thanks greetings

I just checked out the 1980 version of Shankar's "Principles of Quantum Mechanics" from the library and started reading it after reading many rave reviews on Amazon. In the prelude, on page xviii, he says "The answer to each exercise is given either with the exercise or at the end of the...

I am currently working through Apostol's Calculus book. Is it recommended that I work through each and every exercise in each section, or at least in the very important sections, so that I gain a more thorough understanding?

Hi everyone, I'm looking for textbooks that contain exercises on various aspects of mathematical physics (everything a theoretical physicist needs actually, i.e. from linear algebra and tensor analysis to differential geometry and topology etc.) at a graduate level. I am aware, of course...

Hi everybody!I am a new member of this site and i am very happy! I would appreciate it if you could tell me any website in which i can find astronomy exercises.

I'm battling with first order predicate logic (no identity, no extensions) and currently esp. inference using the so called "natural reasoning" rules for inference. Now, the textbook we use, is very ambiguously defined, even I have spotted several 'errors' in it, the lecturer even more. This...

I'm trying to study QFT using P&S book. Now I'm on the chapter 13 but I feel that I'm rather bad at solving practical problems on QFT and QED. Could anyone suggest a good source of problems (preferably with solutions) on QFT and QED (near the level of P&S ch. 1-13) to practise ? Thanks in advance !

Hello, are there any websites of solved exercises and problems in electrical engineering,especially ohm's law,kirchoff's laws and nodal analysis? Thanks

i am having a big issue in deciding whether to read zee's qft in a nutshell book. peskin and schroeder's intro to qft, or ryder's qft book. I have heard the first chapter of zee's qft book is great but the other chapters get progressively worse because they are a general outline of the...

Basically I'm in a chapter about double and triple integration, integration using polar cordinates, etc... I'm not a big fan of my book and it's not very clear to me , so maybe anyone knows where i can find online good explanation of the subject and maybe more exercises. thank you

[SOLVED] Exercises on Lie-algebras I'm doing some homework on Lie-algebra's, and there are several things I am missing. Let me list them below in one thread. The statement is "If L is a classical linear Lie-algebra, then L is semisimple." I have reduced this to proving Rad L \subseteq Z(L)...

I have already tried some internet searches and looked through and solved the more interesting exercises in two of my Larson & Hostetler college algebra/precalculus books, and some in an intermediate algebra book - but I wish I could find many more useful, practical and applied exercises for...

Hello! My English is poor because I'm from Poland. I have 3 exercises from subject called: Mathematical Method In Physics. Would you be so kind and help me to solve this: 1. (a) Prove that: {1 \over r}(rV)''=V''+(2/r)V' (that was easy, but next point (b) is not) (b) Use equation from...

Anybody knows where I can find some online exercises about this stuff? Thx

Hey guys, We've been learning cos/sin rule since the 1st of school, and i really had difficulties with the following exercises, I've been working them yesterday for 2-3 hours and could only manage to do part of it... 1. IN Quadrilateral ABCD, AB=7 cm, BC= 8cm, CD=5cm and angle ABC=52...

Hi. I need help with (part of) this exercise: c) By considering the differences in bonding determine which of the combustion reactions (in part a) I have written combustion reactions for the following hydrides: B2H6, CH4, NH3 and H2S) must be expected to have the lowest energy of activation...