Threads Tagged with boundary Thread / Thread Starter Last Post Replies Views Forum 1. The problem statement, all variables and given/known data A flat plate moves in water (20°C) in the direction of... Dec9-13 04:04 PM PhyIsOhSoHard 1 180 Advanced Physics Homework 1. The problem statement, all variables and given/known data Determining two sets of boundary conditions for a... Dec5-13 03:40 PM LCKurtz 11 236 Calculus & Beyond Homework I have two questions: (1)As the tittle, if u(a,\theta,t)=0, is \frac{\partial{u}}{\partial... Dec3-13 02:44 PM yungman 5 262 Differential Equations My first analysis/topology text defined the boundary of a set S as the set of all points whose neighborhoods had some... Dec1-13 02:01 AM economicsnerd 1 125 Topology and Analysis 1. The problem statement, all variables and given/known data Given a non-linear decision boundary line: (1 + X1)^2... Nov20-13 04:30 PM HallsofIvy 2 259 Calculus & Beyond Homework 1. The problem statement, all variables and given/known data http://s1.directupload.net/images/131117/7h28x7rr.png... Nov17-13 04:56 PM Observer Two 5 279 Introductory Physics Homework So when we calculate divergence (especially referring to the gauss divergence theorem), why aren't the components of... Nov16-13 10:07 AM HallsofIvy 7 619 Differential Geometry In the textbook I am working with, an isolated point of A is defined to be a point X in A such that there exists a... Nov11-13 04:57 AM Axiomer 3 368 Topology and Analysis Hi, I'd love a to have a more graphical understanding of how a plane wave interacts with a boundary. I know the... Nov1-13 12:03 AM Jano L. 3 333 Classical Physics What are the boundary conditions of the universe? Oct26-13 03:39 PM Superposed_Cat 4 590 Cosmology Consider the PDE xu_x + yu_y = 4u. Suppose that we want to find the solution that satisfies u=1 on the circle x^2 +... Oct22-13 10:35 AM vanhees71 1 262 Differential Equations Hello, According to Stephen Hawking no boundary condition universe does not have any boundary in space time.If it... Oct17-13 02:21 PM bapowell 5 578 Cosmology 1. The problem statement, all variables and given/known data Solve \frac{\partial{w}}{\partial{t}} + c... Oct13-13 07:05 PM LCKurtz 4 285 Calculus & Beyond Homework when we electric field between two conductors in certain direction the current density should pass in its direction... Oct12-13 11:55 PM Simon Bridge 1 285 Electrical Engineering I'm finding for an example s.t. $$Δu=f , 0≤x≤1, 0≤y≤\frac{\pi}{2}$$ $$Δu=0, x>1 , 0≤y≤\frac{\pi}{2}$$ let take... Oct9-13 03:12 PM sigh1342 0 271 Differential Equations Hi all, I'm asking a question about the number of the boundary conditions in high-order PDE. Say, we are solving... Sep29-13 11:28 AM pasmith 1 321 Differential Equations Considering the classic problem in Electrodynamics "Conducting sphere with Hemispheres at different potentials" How... Sep28-13 10:35 AM WannabeNewton 4 267 Classical Physics Dear all, I am stuck with the problem which is given below;... Sep24-13 05:58 PM ronaldinho52 3 568 Calculus Hi all, It may be a trivial question. But, if I have a PDE of variable u(x,t) --------------------------------... Sep24-13 04:15 PM AlephZero 10 380 General Physics This was just posted on arxiv. It seems to be of general interest so here's a thread in case anyone wants to discuss... Sep18-13 05:11 PM marcus 17 2,096 Beyond the Standard Model Hey! Speaking electrodynamics, I can't seem to get mathematically or even physically convinced that the solution... Sep17-13 08:26 PM Chestermiller 2 313 Classical Physics Hi all, Say I am solving a PDE as \frac{\partial y^2}{\partial^2 x}+\frac{\partial y}{\partial x}=f, with the... Sep1-13 04:52 AM JJacquelin 6 337 Differential Equations Robert Oeckl proposed this new formulation of QT in December of last year. http://arxiv.org/abs/1212.5571 I think it's... Aug9-13 01:37 PM marcus 0 669 Beyond the Standard Model Hi All, I would like to know why in the infinite well problem, after having solved the time independent SE, we are... Aug9-13 09:05 AM gadong 9 402 Quantum Physics The book states that ##P(x|y,t)## represents the probability density that the potential has a value x at time t,... Aug1-13 11:42 AM fluidistic 2 421 Set Theory, Logic, Probability, Statistics From time to time the Magic Grandmother of Philosophy flies down from the sky and touches physics with her magic wand... Jul14-13 07:20 PM atyy 10 1,011 Beyond the Standard Model suppose function f is define on the interval it satisfies the eigenvalue equation f'' + E f=0, and it satisfies... Jun28-13 12:19 PM the_wolfman 5 484 Differential Equations As learning laser fundumentals, I've just reviewed the boundary conditions for electromagnetic waves. However, I... Jun26-13 02:01 PM genxium 8 624 General Physics A rope is tied at one end then rotated in a vertical circle. Why do we take the tension at the free end of the rope as... Jun17-13 02:14 PM andyrk 2 199 Introductory Physics Homework 1. The problem statement, all variables and given/known data Electromagnetics, Kraus, 4th edition problem 4.7.3 The... Jun12-13 12:28 PM mishima 1 211 Introductory Physics Homework i have an almost square region. By 'almost' i mean the edges are curvy, not completely straight. i now need to... Jun12-13 09:32 AM Chestermiller 1 387 Differential Equations I don't have access to Comsol 4.x. I imported a 3D mesh generated from point cloud data and generated a geometry. ... Jun11-13 07:43 PM gsal 1 998 Math & Science Software Hi, I have a question regarding the boundary condition present for a dielectric immersed in a static field. I hope... Jun9-13 07:59 PM Apteronotus 2 482 Classical Physics A plane wave travels in ##\hat k_I=\hat x \sin\theta_I+\hat z \cos \theta_I## direction hitting a boundary formed by... Jun2-13 07:27 PM yungman 0 211 Classical Physics 1. The problem statement, all variables and given/known data A wave function is given by: \Psi (x) = a cos(2\pi... May10-13 04:04 PM TSny 3 248 Introductory Physics Homework 1. The problem statement, all variables and given/known data I'm trying to find the boundary conditions for the... May8-13 06:00 PM shogun000 21 365 Engineering, Comp Sci, & Technology Homework 1. The problem statement, all variables and given/known data Let C be the boundary of the domain enclosed between y... May8-13 12:01 AM LCKurtz 5 356 Calculus & Beyond Homework I have started studying fluid mechanics recently and seems to be a very basic conceptual question that is bugging me... May5-13 01:05 AM RandomGuy88 1 451 Mechanical Engineering 1. The problem statement, all variables and given/known data I have two questions. 1) generally speaking, when we... Apr17-13 05:26 PM Bacle2 3 241 Calculus & Beyond Homework 1. The problem statement, all variables and given/known data hey, i have a heat equation question which asks to solve... Apr17-13 04:08 PM Guffie 11 287 Calculus & Beyond Homework