advanced Definition and 536 Threads

On page 96, he defined \psi'(x')=S\psi(x), but it seems what he later derived for S only transforms the spinor part not the space-time coordinate of the 4-component wave function, then how is the space-time coordinate primed after acted by S? I'm pretty sure it's not a typo according to what he...

So far I've been working elementary math problems where the main focus is on creative ideas. I want to up my game but I find it hard to get past the first few chapters of more advanced books because they seem so daunting. For example, I wanted to get a foundation for complex analysis and learn...

Hello, I am currently trying to come up with an idea for a project for my advanced physics lab. I have thought to do supercooling/heating, superfluids, and perhaps a rail gun. I have access to a very nice high-speed camera, so I would hope to find an experiment that will utilize it (the rail...

Hello, We are all familiar with the formula that relates union of 2 mutually NOT exclusive events formula: P(A\cup B)=P(A)+P(B)-P(A\cap B) For 3 sets its easily derived using this formula. But I wanted to take this step further. I wanted to find a general formula, that represents...

Homework Statement A particle of mass m's velocity varies according to bx-n Find the position as a function of time, setting x = x0 at t=0 Homework Equations v(x) = bx-n possibly relevant: f(x) = -b2mnx-2n-1 The Attempt at a Solution The first part of the question asked me to...

Hello everyone, I'm really lost on where to start this problem; any thoughts? Thanks...

Hi all, I was just watching an old Feynman clip. In it, he describes areas where our observations are ahead of our theories (e.g. quasars) as well as areas where our theories are ahead of our observations (e.g. black holes). http://www.youtube.com/watch?v=6OrsaL97Epg&feature=related I...

Homework Statement Homework Equations The Attempt at a Solution Obviously I don't need a solution because it's right there. What I need to understand is what happened after the third equation sign and more importantly, how would I learn to solve these kinds of problems on my own. I looked at...

Homework Statement Let n=p^rm, where p is a prime not dividing an integer m>1. Prove that p does not divide C_n^{p^r}. Homework Equations There is a hint: Assume otherwise, cross multiply, and use Euclid's lemma. The Attempt at a Solution Although the author gives a hint, I...

I am a high school physics teacher in upstate NY. I am designing a new physics course and could use your help. I felt this forum was the best place for this post as the only other forum that may fit is the teacher sub forum, however, it appears to be little used and I would like input from...

Ok so I'm not sure if this is the right place to post this thread but I figured Earth/evolution? If not I can always move it to the biology section. Anyway I was speaking to a friend today who claimed that there have been periods of advanced human evolution in which the human mind over a...

Hello there, is there any computer software or programs out there that you can create various Faraday cages simulations

Hello, was wondering if anyone could please help me with the following questions as for math I have been given a substitute teacher who is of little help. Any help would be much appreciated, even if its just pointing me in the right direction Equation 1: Log (x-3) = 1 + Log 4 - Log x...

Hello I am currently studying Math B in high school and am having an extremely hard time with my current assessment. If anyone could please help me with the equations listed below it would be very much appreciated as my current Math teacher is on long service leave, and our substitute is...

I have seen a few recommendations on this forum that said a decent math preparation for a physics grad school should include advanced LA. What exactly would that include? What books would you suggest? Is this book one of them? https://www.amazon.com/dp/048663518X/?tag=pfamazon01-20

Let f:[a,b] \rightarrow R be a continuous function such that f(a)=f(b)=0 and f' exists on (a,b). Prove that for every real \lambda there is a c \in (a,b) such that f'(c) = \lambda f(c).

Hello! Is anyone able to direct me to information regarding the motivation of the plum pudding model of the atom (as opposed to a simply a collection of positive and negative charges)? I am looking for an explanation at the advanced undergrad + level. I recall once reading an explanation...

currently i am joining IIT for an ee btech(b e) degree. i am very passionate for continuing my studies in physics after it, but still i want to study Q mech,G R,on my own here is what i am familiar with as of now. MATHS CALCULUS -TILL pde (variable separable),ODE -double order . vector...

currently i am joining IIT for an ee btech(b e) degree. i am very passionate for continuing my studies in physics after it, but still i want to study Q mech,G R,on my own here is what i am familiar with as of now. MATHS CALCULUS -TILL pde (variable separable),ODE -double order . vector...

Hello everyone, I'm a new member of the Physics Forums, and not a physicist by specialization, so please have mercy :-) I'm a linguist by training, and by profession a writer of fiction and role-playing games. I'm currently in the process of getting my first science-fiction novel...

Hello. I am looking for learning materials for the field of number theory. I took a class this semester in number theory and the topic fascinated me, but I don't feel like I learned that much. I am a mathematics minor so I have a very strong background in basic math, abstract/linear algebra, and...

Homework Statement Suppose that {an} is a monotone decreasing sequence of positive numbers. Show that if the series an converges, then the lim(nan)=0. Homework Equations The Attempt at a Solution I started the proof with the fact that since I know the sequence is monotone decreasing and the...

Hey, I found a copy of this book at my school library and I've been looking through it; I've been brought under the impression that this book is more geared towards a physicists audience versus being a "pure math" book. But other than the final chapter on mechanics, I've so far thought that the...

I have a compound pendulum with mass M, moments of inertia I_ij relative to center of mass, which is a distance l from the point of support Q. Q is attached to the bottom of a vertical spring with force constant k and constrained to move vertically. The top of the spring is fixed to a rigid...

Assignment: Write a client and server, Java Swing application using socket connections that allows the client to specify a filename to the server in a Textfield and the server send the contents of the text file back to the client if it exists. If the file does not exist, then it should send...

Homework Statement function f is differential when x=0, f'(0) is not equal to zero for all a,b(real Numbers) f(a+b) = f(a)f(b) show f'(x) = f'(x)f(x) Homework Equations The Attempt at a Solution f(a+b) = f(a)f(b) for all a,b(real numbers) f(0), a+b=0 then f(0) =...

Edwards "Advanced Calculus of Several Variables" We have been using some chapters from this textbook (1995 edition, ISBN: 978-0070602281) in my Advanced Calculus class, but our professor just gave us photocopies of the chapters we were covering (2 and 3 I think). I wanted to try to do some of...

Which "advanced" math courses are needed to prepare for graduate theoretical physics? I am a first year physics student preparing my schedule for next year. I would greatly appreciate advice on what kind of math will help me prepare for graduate studies in theoretical physics. Here is a list of...

Homework Statement Inflation is currently causing the cost of items to increase by about 2.5% per year. In 2009 a litre of gasoline costs approximately $0.90. What will it cost to fill a 60 litre gas tank 10 years from now? Round your answer to the nearest dollar. Homework Equations...

Homework Statement If a bacteria population doubles in 7 days, when was it half of its present population? Homework Equations A=A0(1+i)^n The Attempt at a Solution i= 100%=1

Homework Statement A particular power boat traveling at V0 km/h when its power is turned off will have its speed V given by V(t) = V0 × 10-0.18t where t is the time in seconds since the engine was turned off. If this boat was traveling at 50km/h before powering down, construct a table showing...

Homework Statement Derive an expression for equilibrium concentrations in terms of formality f (and Keq) for the compounds in the the equilibrium reactions shown bellow. Homework Equations A2 + 2S <---> 2SA SA <---> S + A Where S is a substrate (THF) and A is an adduct (BH3)...

I have a learning disability solely in math comprehension, much of the advanced math was omitted throughout my high school career. I was able to graduate without any very difficult math. But I'm curious, what is the most complex, difficult, and advanced level of mathematics that exists?

This may sound like a stupid question, but binary code seems so "simple", but it's been with us since the 1940's. What'd be wrong with tertiary code, say?

We solve Poisson's equation in cartesian coords for a region bounded by planes forming a box. Some of the planes are grounded. The lengths of the box are L1, L2, L3. There is no charge distribution. Let a=mPi/L2 b=nPi/L3 The solutions goes like: sinh(sqrt(a^2 +...

Homework Statement Given two functions F and G, I will use the following notation to indicate partial differentiation: Fx means dF/dx Gz means dG/dz (for example) I would like to develop the following two expressions. I don't want them grouped into brackets as they're now, but I have...

What exactly is "Advanced Calculus?" My school lists this class with the description of: Advanced Calculus I "real numbers, completeness, continuity, sequences/series, uniform theorems, derivative, pointwise/uniform convergence, Riemann integral, Taylor's theorem." as the description...

Hi, everyone, I am new to Physic Forum, hope that member in physics forum can help me to overcome my difficulties in math^^ Thank you. Here comes the problem: I have a great interest in Einstein's Theory if Relativity, but I understand that theory requires deep understanding on Geometry...

Help me, please / Advanced Fluid dynamics Problems Homework Statement Evaluate the radial component of the inertia term (u dot Del)u in cylindrical coordinates using the following identities: x=RcosΘ y=RsinΘ uEx+vEy = UrEr+UΘEΘ and any other vector identities from Appendix A as...

How do I find the indefinite integral \int\frac{dx}{x^{2}+16} without using partial integration or variable change? I have no clue how this can be done.

A solid sphere of radius R has a non-uniform volume charge density \rho(r) and a constant surface charge density \sigma. If the field inside the sphere is uniform and radially atuned, and the field a distance 2R away from the center is zero, find \rho and \sigma in terms of R, r (distance from...

Fitzpatrick Advanced Calculus--edition differences Hello everyone, I will buy Fitzpatrick's Advanced Calculus 2nd edition, but am not sure paperback or hardcover. The reason I'm unsure is that even though we should be using the international student edition, the professor is using the...

I have to submit a case study on a new or rapidly changing technology. But I'm unable to find any new technology related to mechanical engineering field. I would really appreciate some suggestions here. Technology should be such that there are enough material to help me writing a report.

Hello people! I'm a physicist (Phd student) with a good Physics background. I'd like to get some very good book about aviation in terms of Physics and Engineering. It shouldn't be very hard and detailed book since I'm not an engineer but at the same time it should contain a lot of "science"...

What happened to the "Advanced Physics Forum"? I get a DNS error for the url "http://www.advancedphysics.org/". Google doesn't show any news about a shutdown for that site. Anybody know what's going on?

Homework Statement Consider a first order decomposition reaction 2P(g) -----> 4Q(g) + R(g) + S(l) taking place at a temperature T. After 30 minutes from the start of the decomposition in a closed vessel, the total pressure developed is found to be 317 mmHg and after a long time, the...

Homework Statement A charge Q is uniformly distributed on the ring which is free to rotate about a light horizontal rod. The rod is suspended by light inextensible strings and a magnetic field B is applied as shown in the figure. The initial tensions in the strings are To. If the breaking...

Homework Statement A ball of mass m with a charge q can rotate in a vertical plane at the end of a string of length l in a uniform electrostatic field whose lines of force are directed upwards. What horizontal velocity must be imparted to the ball in the upper position so that the tension in...

Homework Statement There are n points in a plane which are joined in all possible ways by indefinite straight lines, and no two of these joining lines are parallel and no three of them meet in a point. Find the number of points of intersection, exclusive of the n given points. The...

Homework Statement A uniform cylindrical pulley of mass M and radius R can freely rotate about the horizontal axis O. The free end of a thread tightly wound on the pulley carries a dead weight A. At a certain angle \alpha it counter balances a point mass m fixed at the rim of the pulley. Find...