Coupled Definition and 414 Threads

Coupled is an American reality show that aired on Fox from May 17 to August 2, 2016. It was hosted by television personality, Terrence J and created by Mark Burnett, of Survivor, The Apprentice, Are You Smarter Than a 5th Grader?, Shark Tank, and The Voice, as well as Ben Newmark, Dan Newmark and Larry Barron.Filming took place in Anguilla. The cast included Miss Arizona USA 2009, Alicia-Monique Blanco; Miss Colorado USA 2015, Talyah Polee; host, Domonique Price, and American singer-songwriter, TV personality, and former collegiate athlete; Alex Lagemann.
Tyler Gattuso was in the running to be a cast member on Big Brother 17, but was ultimately not chosen due to the news being leaked by online media and his Instagram hinting at the news suggesting he wasn't going to be active for quite a while. A few days later, after the cast for Big Brother was announced, he was ranting on Twitter, shortly deleting them and deactivating his account.On August 8, 2016, Fox canceled the series after one season.

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  1. P

    2nd Order Runge-Kutta: 2nd Order Coupled Differential Equations

    Homework Statement Consider the system of coupled second-order differential equations u''-(t+1)(u')^2+2uv-u^3=\cos{t} 2v''+(\sin{t})u'v'-6u=2t+3 with initial conditions u(0)=1, u'(0)=2, v(0)=3, v'(0)=4. Use the second order Runge-Kutta method with h=0.2 and a=2/3, b=1/3, \alpha=\beta=3/2...
  2. M

    How to Numerically Solve Coupled Second-Order ODEs Using RK4 in MATLAB?

    1. The problem statement. Two 2nd order ODEs are given as : x''-2xy''+x^2 y' = 0 x"+y"+xy'+yx'=0 write a code to solve them numerically using RK4 in matlab. The Attempt at a Solution I have some idea of starting this kind of problem. That is, I first need to convert them into Four 1st...
  3. B

    Solving Coupled Pendula Differential Equations

    Homework Statement Ok basically we have two identical coupled pendula - each of length l with bobs of mass m connected by spring with spring constant k. so I've shown the eqns of motion are mx'' = -mgx/l + k(y-x) and my'' = -mgy/l - k(y-x) The question says: By looking for solutions...
  4. R

    Coupled non linear ordinary differential equations.

    I have a set of ten dependent variables x1, x2 ... x10 and an independent variable t. The differential equations are of the form d x1 /dt = f1(x1, x2... x10) d x2 /dt = f2(x1, x2... x10) ...... d x10 /dt = f10(x1, x2... x10) where f1, f2 ...f10 are non linear functions of x1...
  5. D

    MATLAB Solving Coupled Ingegro-Differential Equations with Maple/Matlab/Mathematica

    I've got a set of coupled Ingegro-Differential equations that I've been working on for a while. Here they are: \frac{\partial b_x}{\partial t} = i x b_x + i u_x \frac{\partial b_y}{\partial t} = i x b_y + i u_y \frac{\partial b_z}{\partial t} = i x b_z + i u_z - \frac{3}{2 \omega} b_x...
  6. M

    Help Coupled harmonic oscillators.

    Homework Statement I am working on my lab, in which I have to find eigenvalues of coupled harmonic oscillators running a) in the same direction and b) in opposite directions. Two masses, three springs. --v^V^V^V^v--[M]--v^V^V^V^v--[M]--v^V^V^V^v- I have to compare my calculated values to...
  7. D

    Decoupling Differential Equations: Can Substitution Simplify the System?

    \ddot{x}=\dot{z} \ddot{z}=\dot{x} there should be z with a dot above it just like the x, but there is none, and the code is correct as far as I know. Can someone help? Thanks.
  8. E

    Can fission be coupled to he-3 or H3 to reduce waste?

    Can fission be coupled to fusion he-3 or H3 ? The goal is to reduce long-lived by products of uranium fission for a given amount of energy (heat) released. Could uranium fission, releasing neutrons, be coupled to some kind of "neutron" fusion reaction such as H3 (tritium) or He-3 or lithium...
  9. D

    Solving Coupled Mass Problem: 4x4 Matrix Equation

    Homework Statement Suppose masses m_{1}, m_{2}, m_{3}, m_{4} are located at positions x_{1}, x_{2}, x_{3}, x_{4} in a line and connected by springs with constants k_{12}, k_{23}, k_{34} whose natural lengths of extension are l_{12}, l_{23}, l_{34}. Let f_{1}, f_{2}, f_{3}, f_{4} denote the...
  10. K

    Coupled damped harmonic oscillator

    Hi everyone, I'm dealing with system identification for the first time in my life and am in desperate need of help :) The system is spring-mounted and I'm analyzing the vertical and torsional displacements. However, it seems like the vertical and torsional oscillations are coupled (shouldn't...
  11. M

    Finding Coefficients for Coupled Harmonic Oscillator

    I've been looking at a coupled harmonic oscillator, and normal modes of this: http://en.wikipedia.org/wiki/Normal_mode#Example_.E2.80.94_normal_modes_of_coupled_oscillators At the bottom of this example it says: This corresponds to the masses moving in the opposite directions, while the...
  12. D

    Solving Infinite Coupled ODEs to Tackling Complex Systems

    Homework Statement \dot{x}_i = \sum_{ n=1}^{\infty} a(n,i) x_n +b(n,i) y_n \dot{y}_i = \sum_{ n=1}^{\infty} c(n,i) x_n +d(n,i) y_n \forall i \in \mathbb{N} Homework Equations a,b,c and d are constants (though dependent on the constants n and i).The Attempt at a Solution I want to...
  13. T

    Hollow shaft coupled to another

    Homework Statement A 400mm hollow shaft is coupled to another 400mm hollow shaft. The pitch circle diameter is 600mm and bolt diameter is 65 mm, and there are 6 bolts. The stress in the bolts is the same as the stress in the shaft. Find the inside diameter of the shaft. Homework...
  14. D

    Two coupled harmonic oscillator, damping each other

    The problem is: Two damped harmonic oscillator are coupled. Both oscillators has same natural frequency \omega_0 and damping constant \beta. 1st oscillator is damped by 2nd oscillator. Damping force is proportional to velocity of 2nd oscillator. And, vice versa, 2nd oscillator is...
  15. A

    Design AC Coupled Amplifier: 12V Supply, 30mV Input, 24dB Gain

    Hey guys. I want to design an AC coupled amplifier, to be powered by a 12V supply. The input voltage should be less than 30mV and the gain of the circuit should be 24dB. The circuit has 2 stages with the gain of the 1st transistor amplifier being used to amplify the signal going into the 2nd...
  16. S

    Solving Coupled second order differential equations

    Just wondering does it matter which coupled differential equation you solve first ( i terms of time)? normally i just solve the first equation, so far all our tutorial question involved finding solutions to second order equations that have 2 distinct roots ( for the auxilliary equation)...
  17. E

    Solving Coupled ODEs: x(t) and y(t)

    I have the following coupled ODE: 2x+y^2=d^2x/dt^2 2y+x^2=d^2y/dt^2 How would one solve for x(t), y(t)?
  18. J

    Coupled Generalized Momentum & Hamiltonian Mechanics

    I have a brilliantly engineered system of a bead-on-a-circular-loop (mass=m) rigidly attached to a massive block (mass=M) on one side and a spring on the other. The spring motion is constrained to be in x-direction only, while the bead is free to move on the wire anyway it wants to (no \phi...
  19. E

    Is my ODE solution correct for car suspension system?

    Homework Statement http://img27.imageshack.us/img27/2193/matlapassig2fig.jpg http://img132.imageshack.us/img132/7126/matlapassig2.jpg Homework Equations My impulse response is entirely different which make me believe that i have messed up my ODE. I have taken the laplace tranform to get it...
  20. E

    Solve Coupled Oscillation Homework Problem

    Homework Statement "A particle of mass m is attached to a rigid support by means of a spring of spring constant k. At equilibrium, the spring hangs vertically downward. An identical oscillator is added to this system, the spring of the former being attached to the mass of the latter. Calculate...
  21. C

    Coupled Oscillator Homework: Find Normal Mode Freqs

    Homework Statement One mass m constrained to the x-axis, another mass m constrained to the y-axis. Each mass has a spring connecting it to the origin with elastic constant k and they are connected together by elastic constant c. I.e. we have a right-angle triangle made from the springs with...
  22. M

    Maple Maple: ODE and PDE system coupled

    Hello, This is my first post and hopefully my question has not been answered elsewhere already as I realize it is annoying to answer the same type of posts over and over again. I am working on a system of PDEs with one ODE, coupled. It is an SEIR model with one extra class for the group of...
  23. A

    What does it mean to say that two things are coupled or not decoupled ?

    What does it mean to say that two things are "coupled" or "not decoupled"? In a paper I'm reading, it says that "the vibrations and rotations are no longer decoupled for large angular momentum." (This is discussing a diatomic molecule.) What, exactly, does this mean?
  24. N

    Trouble with boundary conditions in Newton-Raphson method for Coupled PDEs

    Hi all, This pertains to a pretty common method of simulating semiconductor devices, but unfortunately I've looked through tons of sources that have been unable to answer my question: I'm currently working on a 1D device simulator in MATLAB that uses a Newton-Raphson iteration to solve...
  25. N

    C/C++ How Can You Solve Coupled Differential Equations in FORTRAN or C++?

    Does anyone know of an example algorithm that solves coupled differential equations in either FORTRAN or C++?
  26. P

    What makes a system strongly coupled?

    I was reading about AdS/CFT and its possible description of superconductors. It is said that superconductors may exhibit a strong coupling behavior. In general, AdS/CFT is thought to be a good tool to study strong coupling dynamics. Now, my question is what are the properties that define a...
  27. S

    Coupled oscillation - ball on a balanced rod

    Homework Statement This system consists of a rod balanced on a fulcrum, with a ping pong ball able to slide on the rod. There's a special point some point away from the center where, once the ball is released, will stop moving once it has gotten the same distance on the opposite side of the...
  28. I

    Coupled nonlinear partial differential equations or simple matrices?

    Why is it impossible to find ALL of einstein's equations in one place? well I suppose its irrelevant, I'd just like to know what math I have to do to define the energy-momentum tensor for a particle if I know say... its energy and momentum, or is that illegal? I'm struggling to grasp general...
  29. E

    Equations of Motion for Three Coupled Pendula with Low Spring Constant k

    Homework Statement Derive the equations of motion for three identical pendula A, B and C, of mass m and length L coupled together (A to B and B to C) with two identical springs of low spring constant k. Can't quite appreciate the forces acting on these pendula as they all should be...
  30. T

    Lagranguan / Coupled Oscillator

    Homework Statement WIthin the framework of an idealised model, let a square plate be a rigid object with side "w" and mass "M", whose corners are supported by massless springs, all with a spring constant "k". The string are confined so they stretch and compress vertically with upperturbed...
  31. T

    Lagranguan / Coupled Oscillator

    moved to Advanced Physics Section seemed more relevant link to it is https://www.physicsforums.com/showthread.php?p=2169513#post2169513" Sorry for the double post in two spots if this can be removed Thanks Heeps
  32. X

    System of Coupled Differential Equations

    I'm not sure if I'm using the correct terminology, but just to be sure let me explain what I understand to be coupled DE's (or CDEs); A set of DEs with the all derivatives taken with respect to a single parameter t and each DE depending on the functions f1,f2,...,fn. If you guys would like to...
  33. wolram

    How these are coupled to the engine on F1 cars?

    Any one know how these are coupled to the engine on F1 cars? http://www.greentechmedia.com/articles/shock-therapy-cars-to-get-electro-power-boosters-5159.html They seem to work well for overtaking.
  34. I

    Engineering Magnetically coupled inductors an AC circuits

    Homework Statement I've actually uploaded the question. When solving problems with magnetically coupled inductors I like to add dependent sources so that I can keep everything straight. My question is when I add the dependent sources does there need to be a specific polarity to them. With...
  35. K

    Rigorous Coupled Wave Analisys - help

    Hi, Recently I'm trying to understand some explanation of RCWA, which introduces to computational analysis of diffraction grating efficiences. For explanation I use Soifer book, but cannot understand or don't agree with it. I tried to understand the derivation, not to write it straightforward...
  36. O

    Coupled Oscillations - Solving for Eigenvectors & Solutions

    I have a burning question, I was trying to find the solutions for a double mass coupled oscillation. So I found out the eigenvectors and then I arrived at this step \left( \begin{array}{c} \ddot{x_1} \\ \ddot{x_2} \end{array} \right)=\lambda \left( \begin{array}{c} x_1 \\ \ x_2 \end{array}...
  37. T

    Coupled Oscillators: Masses m and 2m in 3l_0 String

    The problem is: A mass m and a mass 2m are attached to a light string of unstretched length 3l _{0} , so as to divide it into 3 equal segments. The string is streched between rigid supports a distance 3l \textgreater 3l _{0} apart and the masses are free to oscillate longitudinally. The...
  38. M

    How Do You Derive Coupled Pendulum and Mass on Spring Equations of Motion?

    Homework Statement A mass M1 sits on a level frictionless surface attached to a spring of stiffness k. Mass M2 is supported from M1 by a string of length l. The horiztonal displacement from the equilibrium position of M1 is x1; the horizontal displacement of the pendulum from the wall where...
  39. R

    Solve Coupled Oscillator Homework: Find 2 Eigenfrequencies

    Homework Statement A thin hoop of radius R and mass M oscillates in its own plane with one point of the hoop fixed. Attached to the hoop is a small mass M constrained to move (in a frictionless manner) along the hoop. Consider only small oscillations, and show that the eigenfrequencies are blah...
  40. A

    Second-order Coupled O.D.E.s with constant coefficients

    Homework Statement I am trying to solve a system of two coupled ODEs. I am interested in an analytic solution if that is possible. I know it will be messy. \frac{\partial^2 U_1}{\partial x^2}+a_1\frac{\partial U_1}{\partial x^2}+b_1 U_1 = c_1 U_2 \frac{\partial^2 U_2}{\partial...
  41. O

    Coupled eigenvalue-like problem

    Homework Statement If A, B are (complex) symmetric 3x3 matrices and det(xA-B) has three distinct solutions a,b and c, prove there exists P invertible such that PtAP = I the identity matrix PtBP = diag(a,b,c) the diagonal matrix with non-zero entries a,b and c Homework Equations...
  42. D

    Unbounded Solutions for Coupled First Order ODEs

    Homework Statement \dot{x}= \cos(t) x_1 +\sin(t) x_2 \dot{y}= \sin(t) x_1 - \cos(t) x_2 Show that the solutions are unbounded. The Attempt at a Solution I tried to find the explicit solution (by hand) but I failed numerous times. What is the right course of action I...
  43. 8

    How Do You Derive Equations (3a) and (4a) for Coupled Pendulums?

    Homework Statement two coupled pendulums are used at positions x,1 and x,2 Newton’s equation for the forces leads to the two equations: m,1 * (second derivative of x,1 with respect to t) = -k,1x,1 + k(x,2 - x,1) and m,2 * (second derivative of x,2 with respect to t) = -k,2x,2 - k(x,2...
  44. S

    What is the Best Element for Coupled Field Analysis with ANSYS?

    I am trying to do a coupled field analysis, FLUID-Structure interaction. Wind strikes normally a panel covered by a very thin and flexible material that is polyethylene film and displacement of the film is what i need. The analysis is 2D. I create the flotran environment but when it comes to the...
  45. J

    Numerical Solutions to Coupled ODEs with Boundry Values at Opposite Ends

    I am trying to model a packed bed distillation column for a binary liquid in Python. Unfortunately, when I set up my system, I end up with a system of coupled non-linear first order ODEs with boundary conditions at opposite ends (feed conditions and exit conditions), and I do not know how to...
  46. D

    Non-Conservative Work systems coupled with friction.

    [b]1. The problem statement: The coefficient of friction between the 3.00 kg block and surface in the figure below is 0.400. The system starts from rest. What is the speed of the 5.00 kg ball when it has fallen 1.10 m? The picture "below" depicts the 3.0 kg block on the table, attached to...
  47. T

    Solving Coupled Flow and Diffusion in COMSOL: Error Analysis

    Hi, I am not sure if this is the right place to post a COMSOL question. If not I apologise, could you point me to the right place. I have a 3D geometry in COMSOL shape like a "T" where I want to model flow using navier stokes and a chemical diffusion using convection and diffusion. Both...
  48. R

    Difference between direct coupled and transformer coupled?

    what is the difference between direct coupled and transformer coupled?(mechanical configurations with the required turns ratios of 1:25 direct coupled and 1:1.79 transformer coupled)
  49. D

    Coupled quantum harmonic oscillators

    Hi folks, I have to solve an exercise about two oscillators whose Hamiltonian is H = 1/2 (m w^2 q1^2 + m mu^2 w^2 q2^2 + m lambda^2 w^2 q1 q2) I successfully found the unitary transformation that decouples the problem, but I am also asked to use the Adiabatic Method to find approximate...
  50. I

    Variation with scalar field coupled to gravity in 2D

    The two dimensional action is: S_k = \int d^2\sigma\sqrt{h}\left(\partial_\alpha\phi\partial^\alpha\phi - \frac{i}{2}kR^{(2)}\phi\right) where k is a constant, R^{(2)} is the two dimensional scalar curvature. I'm trying to derive the following energy momentum tensor: T_{\alpha\beta}^k =...
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