Elementary Definition and 537 Threads

I was thinking about sitting in a course next quarter that used this textbook, and no prerequisites are listed, so I was wondering what kind of things should I know to get through the text. The thing I am most worried about is my knowledge of QM. I only know the little QM I have studied...

An Elementary Proof Of The Beal Conjecture And Fermat's Last Theorem. By: Don Blazys. The Beal Conjecture can be stated as follows: For positive integers a,b,c,x,y,z, if a^x+b^y=c^z, and a,b,c are co-prime, then x,y,z are not all greater than 2. Proof: Letting all variables...

Homework Statement So, if the problem asks... Find the elementary matrices such that the respective matrix equation holds...what do I do? [_ _ _] [4 4 -1] [4 4 -1 ] [_ _ _] [4 -1 -5] = [4 -1 -5] [_ _ _] [-4 1 4] [-12 3 12] Does this mean to find a...

elementary charge(someone please help, i have a test tomorrow!) ok, this goes for everybody, u know how in school, u learn that an electron has a charge of -1 and a proton has a charge of +1? is this in elementary charge(e)? thanx.:)

how to present this matrix as a multiplication of elementary matrices \bigl(\begin{smallmatrix} 0 &6 &2 \\ 1& 1 &0 \\ 5&3 &1 \end{smallmatrix}\bigr) i can't understand in general what are they doing in this solution http://img144.imageshack.us/img144/9508/34036247.th.gif ??

Any ideas here? For that matter, why should the spin of each particle always be the same? Or can we do no better than to say they do, and that its spin is a fundamental property of what defines each particle?

I was reading that the "exchange rows" operation can be achieved through the other two operations: multiplication by a nonzero number and adding a multiple of one row to another. Any thoughts on the actual algorithm for achieving an exchange of rows through these other two operations? I...

Greetings Next semester I'll have solid state physics, statistical physics and and introductionary course in elementary particles. So I was wondering maby those of you who had those subjects could recommend me some books. I really liked books by Griffiths so far. Especially the one on...

Homework Statement A disk is cut into 6 equal pieces and labeled 1 through 6. On it, a player spins an arrow twice. The fraction ( a / b ) is formed, where a is the number of the sector where the arrow stops after the first spin and b is the number of the sector where the arrow stops after...

[b]1. This is a problem involving public key cryptography [b]2. 16^31 is congruent to 081 (mod 247) [b]3. I would first evaluate 16^31 and the divided by 247 to find the remainder. I know how to work with congruences, but 16^31 is a very huge number I don't know how to evaluate it into...

This isn't really a particular question...i just missed the classes relating to these 2 topics so I have no idea how to do questions with them...so can someone please explain how i go about solving questions such as: 1. I'm given 3 points in R3, and I'm supposed to find the equation of the...

Which would fit this description and with answers?

In Souriau's book of symplectic mechanics he describes an elementary dynamical system on which the Poincare group is dynamic and acts transitively. He then describes a massive particle with spin where the spin is some positive number. When we consider this particle in the presence of an external...

There was a lot hoopla recently over an elementary school's Thanksgiving tradition: http://www.contracostatimes.com/ci_11076282?source=most_emailed

Homework Statement im having problems with this question, i don't know how they got their answer. the question is: find elementary matrix E such that B=EA A=-1 2 B= 1 -2 (these are matrices) 0 1 0 1 Homework Equations elementary row operations The Attempt at a...

I'm looking over a proof and I'm wondering from which principles does it follow that \mid a - b \mid < 1 \to \mid a \mid < \mid b \mid + 1 I can see that |a - b | \le |a| + |-b| = |a| + |b| and that |a| - |b| < |a| + |b| but I just can't connect the dots.

Homework Statement a house plan has 3 different floor plans: Plan A- 3 three-bedroom units, 7 two-bedroom units, and 8 one-bedroom units Plan B- 4 three- bedroom units, 4 two-bedroom units, and 8 one-bedroom units Plan C- 5 three-bedroom units, 3 two-bedroom units, and 9 one bedroom units...

Is it a good book?

I don't have a specific question in mind but can someone explain to me how to solve a question of the type " express the matrix A as the product of N elementary matrices"

I don't have a specific question that I need solved, but can someone explain to me how to solve a problem such as "express matrix A as a product of N elementary matrices." How do i go about solving this? uu i think i posted this in the wrong forum...

Hi Homework Statement L[f] = (s)^(1/2) The Attempt at a Solution Is there actually an elementary laplace transform that can compute this? I tried using derivative to solve for it, but i'll always be stuck with a fractional exponent. Thanks

how many... till now how many elementary particles are disovered? what are bosons? what happens when fermions interact with bosons?

Homework Statement Write the given permutation matrix as a product of elementary (row interchange) matrices. \begin{array}{ccc} 0 & 1 & 0 & 0 \\ 0 & 0 & 0 & 1 \\ 1 & 0 & 0 & 0 \\ 0 & 0 & 1 & 0 \end{array} The Attempt at a Solution I found the row echelon form to be the identity...

Hi, I'm a little stuck on Nakahara's treatment about fibre bundles. I hope someone can give me a clear answer on this; they are quite elementary questions, I guess. We have: * A principal bundle P(M,G) * A fibre G_{p} at p= \pi(u) Then the vertical subspace V_{u}P is defined as a...

With exact rounding, we know that each elementary operation has a relative error which is bounded in terms of the rounding unit n; e.g., for two foating point numbers x and y, (x + y) = (x + y)(1 + E); |E| <= n. But does a similar result hold for elementary functions such as sin, ln and...

Hi, I'm sorry if this is in the wrong forum. I've been interested in science for while a white, most notably theoretical physics. In the end, I decided to go for a degree in Computer Science, but haven't lost my interest in physics. With the introduction of CERN, I'd be interested if...

The Science Channel is running an hour program on the LHC. They make a statement that the pages and pages of equations that describe BBT don't actually work because they don't explain how the elementary particles get their mass. How does this criticism get addressed or is it actually true?

it's only the second day of class but my professor assigned some problems that are those weird ones that neither he nor the book even discusses, I have tried several different methods including parametric graphing, integrating the functions, deriving the function, but to not even the slightest...

Hello, Could anyone suggest me some good resource for the elementary electronics physics. Book name or really good link online I want to get the knowledge of electric current, potential, field..and so on Thanks!

I am confused. I thought that the standard model included 6 quarks and 6 antiquarks, 6 leptons and 6 antileptons and 5 bosons (W+,W-,Z,photon,gluon). However in Griffith's "Introduction to Elementary Particles" (on page 48) he says that there are "12 leptons, 36 quarks, 12 mediators". I am...

1. A force of 9.2x10-14 acts on an unknown particle that travels at 2.40x106 m/s into a magnetic field of 4.8x10-2 T. How many elementary charges does this particle carry? I've used Fm=qvB and found q=Fm/vB and got an answer of q=7.986 x10-19 C. I'm not sure where to go from here. I assume I...

I would say by now, I'm an expert in manipulating equations and playing with algebra. However, I've also realized I have no idea why some of the operations I do are valid. For example... why is (x+2)(x-2) = x^2 - 4? Why does this expansion work? I'm guessing it preserves some kind of field...

Say I have an acute angle A in standard position in the first quadrant with a rotating arm of length r , terminating at coordinate P(a,b) . Now say I rotate it 90 degrees further from that position to the second quadrant , this ends up at coordinate Q(-a,b) . I draw perpendiculars from those...

Could someone suggest a good book for elementary QFT and particle physics?(I don't know which to read first). I have very little idea about QFT. Could someone also tell me what maths knowledge is required?

1. The problem statement Suppose we have a thermodynamical system whose state is modified by external forces. This results in a change of the internal energy of the system. If we designate by W_{ext} the total work done during the process by the external forces acting on the particles of the...

Do you think there is such a thing as an elementary particle, regardless of whether such a thing has been detected/measured? What do you conceive an elementary particle to be? Dan Howitt Ny

Photons(light) follow the fermat's principle of least time...so do all elementary particles also follow fermat's principle of least time?..say electron,proton etc..

Homework Statement I'm trying to understand the Variation of Parameters in ODEs and I came up to this following expression which i cannot solve: {2\,{e}^{-t}{e}^{-3\,t}\choose {e}^{-t}{e}^{-3\,t}} \int {\,{e}^{t} {e}^{\,t}\choose {e}^{3t}{2e}^{-3\,t}} {10\,\cos \left( t \right)...

Elementary particle(ANYONE PLZ HELP ME WITH THIS Q) The charge-to mass ratio of the pi^- particle was determined. The charge-to-mas ratio of the electron is 1.76x10^11C/kg. a) predict which particle has a greater mass-the electron, or the particle. b) use the value of the elmentary charge to...

Use the de Broglie equation to explain which is better probe of the contents of the nucleus--a fast-moving electron, or a slow-moving electron. Can someone simplify what the qestion is asking for?

Sketch a diagram of the atom H-2, using the appropriate quarks and leptons. Label the particles in your diagram. I don;t knoq how to do this because my book does not have any example of this...:(

hi, I am having trouble deriving an expression for converting between monochromatic flux expressed in wavelength and in frequency units. i think that the monochromatic flux of a star is found by F(Δf) = ΔE / ΔtΔfΔA F(Δλ) = ΔE / ΔtΔλΔA where E = energy, t = time, Δf = frequency bandwidth, A =...

My question is stated in the title. I wonder is it that scientists are not able to explain the origin of magnetic moment of elementary particles and say that it's an intrinsic property just like mass.

Hi. I am setting up math courses at ASU, and I am in a kind of bind. The original course that I was signing up for, required me to send in material that I've covered so I could be verified, however, without warning, they marked me as already finishing the course due to that material. So...

Homework Statement \int\frac{\arctan{x}dx}{x(x^2+1)} I've been thinking over this for the past few days...I'm still stuck though Can this integral even be expressed with elementary functions? Homework Equations N/A The Attempt at a Solution use the substitution u=tan{x}, and...

This is a brief tutorial to cover the basics of index notation which are useful when handling complicated expressions involving cross and dot products. I will skip over a lot of technicalities (such as covariant and contravariant vectors) and focus on 3 dimensions - but all of what I say here...

Hi, I have some elementary questions about geometry. I often find that I am perfectly able to do calculations, but sometimes I have the feeling I'm not totally understanding what I'm actually doing. Maybe this is familiar for some of you ;) Up 'till now I have some questions about quite...

The formulation of quantum theory does not comply with the notion of objective existence of elementary particles. Objective existence independent of observation implies the distinguishability of elementary particles. In other words: If elementary particles have an objective existence...

I have a homework question that reads: Represent the following rational functions as sums of elementary fractions and find the primitive functions ( indefinite integrals ); (a) f(z)=z-2/z^2+1 But my confusion arrises when I read sums of elementary fractions. I think what the question is...

How do 4 Hydrogen atoms combine to form 1 Helium atom? What I'm looking for is the sub-atomic process. So, here come 4 Hydrogen atoms racing towards each other and they are at such a high speed and temperature that something different happens. Something different than if they were going...