Superposition Definition and 673 Threads

This isn't a homework question, however I'm curious if displacement fields can simply be added to find the total displacement field at some point. My instinct tells me this should be true. For linear media, D=εE. Since electric fields can be superimposed upon each other, shouldn't the same be...

Homework Statement Apply the source-superposition method to the circuit below to determine: (a) Vx’, the component of Vx due to the 1 A current source alone. (b) Vx’’, the component of Vx due to the 10 V voltage source alone. (c) Vx’’’ , the component of Vx due to the 3 A current source...

Homework Statement I have to find voltage at point 2 using superposition method. So, I drew one circuit with no voltage source and another with no current source, and then tried to analyze each one separately. (On the picture starting from left, its 10 volts, then 10ohms, then at top 5...

Hi Guys, I have a question about observable's and superposition's that I haven't been able to find a definitive answer to (purely for the fact that it doesn't seem to be addressed), and would greatly appreciate an answer. When in a superposition state of an observable, you are also in a...

Do atoms "generally" exhibit superposition when not isolated? Do atoms "generally" exhibit superposition when not isolated from the enviorment?I know that electrons and photons do but are regular atoms in the real world "generally" in a state of superposition without all the scientific...

Does superposition have a radius or a space covered distance which cuts off at a certian point based on the size or coherance of the object. I understand it is a statistical distribution like a blanket of qm possibility as to where the object or particle can collapse. But is there a cut off...

Hi, The violation of Bell's inequality says that quantum mechanics can't be both local and realistic. Let's assume it is realistic but non-local. How does this explain the fact that a single particle can be in a superposition that collapses to a particular state when measured? Since we only...

Hi Guys, I wonder if someone could help check something for me in order to make sure that I'm not making a stupid mistake with this problem as I've been marked wrong on an undergraduate paper, but I'm almost certain that I'm right. I don't quite have enough courage in my convictions to...

"Path (or single particle)" Superposition Vs Entanglement Superposition "Path" superposition 1. Single photon/particle...say going through a double slit Entanglement superposition 1. Creation of two entangled photons Path superposition - 1 particle...superposition of multiple...

Hi, Assume we have a source that emits several copies of the same quantum state which is a superposition of several eigenstates of the Hamilton operator with different energies. We can calculate the expectation value of the energy of this state and therefore also the energy the source...

Hi, could check if I have the right answer please. The question (Q 4b) is in the attached image below. My answer is:First for analysis the DC voltage source. i2 = 0.82A, i1 = 1.97A therefore V across 10Ω resistor = 11.5V. For the analysis of the current source I got a bit confused...

Entanglement is a type/product of superposition. How is entanglement different from other kinds of superposition?...such as when a photon is a superposition of all possible paths/locations

My question preferibily if sci advisors could answer this as objects get bigger does the radius or space of its superposition become smaller to the point at which it is so miniscule its hard to notice. Wheras smaller objects like atoms have huge superpositions and can be in california and new...

Homework Statement Consider a situation in which a wave is traveling in the negative x-direction encounters a barrier and is reflected. Assume an ideal situation in which none of the energy is lost on reflection nor absorbed by the transmitting medium. This permits us to write both waves with...

Homework Statement Two plane waves are given by E_{1} = \frac{5E_{0}}{((3 \frac{1}{m})x - (4 \frac{1}{s})t)^{2} + 2} and E_{2} = -\frac{5E_{0}}{((3 \frac{1}{m})x + (4 \frac{1}{s})t)^{2} - 6} a) Describe the motion of the two waves. b) At what instant is their superposition everywhere...

Homework Statement The question asks us to find the superposition of 2 waves where y1=3cos(4x-1.6t) and y2= 4sin(5x-2t) and find the superposition of the waves y1 + Y2 at x=1 and t =0.5 Homework Equations The Attempt at a Solution Okay, what confuses me. is my teacher explained...

I'd like to understand better the connection between Hal Haggard's September ILQGS talk http://relativity.phys.lsu.edu/ilqgs/ http://relativity.phys.lsu.edu/ilqgs/haggard091713.pdf http://relativity.phys.lsu.edu/ilqgs/haggard091713.wav and the talk he gave at PI two days ago...

Homework Statement Hi Two wave superposition with different wavelength , amplitude and frequency u1(x,t)=A1cos(k1x+w1t) u2(x,t)=A2cos(k2x+w2t) a)Show that an amplitude modulation is obtained Homework Equations No relevant equations The Attempt at a Solution...

Can someone link me/explain to me the proof of this theorem? I can't seem to find it online. Thanks! BiP

Homework Statement So, given a unpolarized monochromatic plane wave E = summation ai cos(kz - wt + bi), i from 1 to N where b is a phase constant. how would you describe this as the superposition of a right handed and left handed polarized beam?Homework Equations Er = Acos(kz-wt+phi1) + A...

Hello, I was wondering, is there a preference for when to use either of these methods for solving statically indeterminate structures, or are both equally viable in all situations? Also, when using these how does one know where to ''cut'' the sections up to find the internal forces? Thank you

1. A system consists of the charges -q at (-d,0), +2q at (d,0), and +3q at (0,d). What is the total electric potential energy of the system. 2. I'm wondering, is it necessary to calculate each electric potential between charges from lower electron potential to higher electron potential...

Homework Statement Given \frac{dx}{dt} = -1.3x x_{1}(t)=e^{-1.3t} x_{2}(t)=4e^{-1.3t} Compute a solution for x(t) if x(0)=3 Homework Equations Superposition Principle and some ODE related Anyhow I refer to this http://www.youtube.com/watch?v=_ECd0Jn7y68The Attempt at a Solution First...

need help understanding "Superposition Principle"..! hello everyone.. if we have a function y=f(x) then in-order to prove linearity we try to justify according to superposition principle as : let x1 and x2 be two inputs then f(x1+x2)=f(x1)+f(x2) please correct me if i am wrong upto here...

What is the current understanding of the possibility of the nature of macroscopic superpositon of possible histories of the universe? Hopefully, I've worded that unambiguously, but I'll try to clarify it. I've never seen a discussion on this and I'm not entirely sure why. We're aware of...

Homework Statement Secret Agent Jane Pond must retrieve the secret plans of her arch-nemesis EvilToes. These plans were tossed (by one of EvilToes’ bumbling henchmen) down a well of unknown depth. Jane is carrying a rope 10m long and a “standard issue VPG-C1C7”. (The VPG-C1C7 is a device...

Homework Statement An electron in an infinitely deep potential well of thickness 4 angstroms is placed in a linear superposition of the first and third states. What is the frequency of oscillation of the electron probability density?Homework Equations E=hωThe Attempt at a Solution My main...

Eigenstates of some observable O are represented by orthonormal vectors in complex Hilbert space. Is it true that the only possible way that the state vector can evolve from one eigenstate of O to the next, is to rotate between the two eigenvectors so that intermediate state vectors are...

Eigenstates of some observable O are represented by orthonormal vectors in complex Hilbert space. Is it true that the only possible way that the state vector can evolve from one eigenstate of O to the next, is to rotate between the two eigenvectors so that intermediate state vectors are...

This form of a Bell inequality: n[x-y+] + n[y-z-] ≥ n[x+z+] is derived from spin measurements at A and B when detector settings are aligned. If it is correct that when a particle is measured at detector A and is spin up in the y direction , then its entangled twin at B is in superposition...

Hi fellow physicist! I have some trouble with finding a valid argument, for why the superposition theorem should be fulfilled for electrical circuits - there only containing resistors, capacitors and inductors - where the sources of the emf. are connected in series. Thanks in advance.

I've been wondering and asking questions about entanglement lately. I am very dissatisfied with the answers I've been getting - not necessarily because any of the answers were incorrect, but more likely, because the answers were of the sort which reminded me that i was asking about...

Forgive me if this post is too long and too full of misconceptions. I'll try to be clear and concise. And sorry for cramming too many questions into it, but they all sort of go together. I'm wondering if someone can help me understand the idea of superposition. Does it only have to do with a...

Homework Statement The figure is a snapshot graph at t = 0s of two waves approaching each other at 1.0 m/s. Draw six snapshot graphs, stacked vertically, showing the string at 1s intervals from t = 1s to t = 6s. Homework Equations...

Hi, This is silly, but I'm confused as to how we use the unit circle as a representation of particle states. I've been given the formula (probability distribution)=α|0> + β|1> (or in radians sin∅|0> + cos∅|1> or something), where the probability of a particle being in a certain state is the...

Show that if a geometric figure is congruent to another geometric figure, which is in its turn congruent to a third geomtric figure, then the first geometric figure is congruent to the third. Answer : I will be showing what the question asks by using superposition of the geometric figures...

Homework Statement Find the combined elongation of the waves 7sin(wt) and 2sin(wt + pi/4). Express it both in real and complex form. Homework Equations A = sqrt(A12 + A22 + A1A2cos(Δθ) The Attempt at a Solution I was given the formula above, which I don't understand, but it does...

because Schrodinger equation is a linear differential equation. How do we show that Schrodinger equation is a linear differential equation?

Homework Statement I have attached a pdf of the problem I am working on. The top circuit is the original problem; I am supposed to solve for the voltage drop across the 4-ohm resistor (top right). I HAVE to use the superposition theorem to solve this problem. The 4 circuits drawn below...

Homework Statement For the above circuit, find the coefficients of the linear relationship vout = a1vs1 + a2is2 + a3is3 by superposition. Then find the power delivered to R3 when vs1 = 100 V, is2 = 2 A, and is3 = 4 A. Given: R1 = 20 Ω, R2 = 60 Ω, and R3 = 20 Ω. Homework Equations...

Superposition caused by - Double slit, Mach-Zehnder Quantum superimposed paths/waves interfere ...for example the double slit experiment (single particle interference) Quantum superimposed paths are effected by obstacles such as opaque, half silvered mirrors, refractive index transparent...

How is see by our senses a superposition of sensorially distinghible states in superposition, for example, superpositions of states with the same object with a separation of ≈1 cm??

what is the whole concept of the superposition principle?

2. V=IR, Voltage division, KCL, KVL 3. When I short out the dependent current source by replacing it with an open, can I switch the location of the independent source and the 20 ohm resistor so I can do a voltage division to find the voltage across the 20ohm resistor which is then equal to Vo...

Homework Statement Consider a particle in an infinite square well described initially by a wave that is a superposition of the ground and first excited states of the well ψ(x,0) = C[ψ_{1}(x) + ψ_{2}(x)] Show that the superposition is not a stationary state, but that the average energy...

Homework Statement A student is at some point between two sound reflecting walls. He's holding a tuning fork and runs towards one of the walls at 5m/s. The pulsating frequency he hears is 8Hz. ¿What's the sound frequency emitted by the tuning fork? Answer: 137.17 Hz. I know I'm supposed to use...

Homework Statement Use superposition to find V0 in the circuit: http://imageshack.us/a/img62/5567/eecircfinal1.jpg Homework Equations V = IR Voltage division for 2 series resistors: V across a resistor = (Resistor / total series resistance)(V in) Current division for...

Homework Statement Using expansion of sin and cos functions, show that the resultant of adding the following two waves: a) E1 = E01*sin(wt-k(x+Δx)) b) E2 = E01*sin(wt-kx) Gives: E = 2E01*cos((1/2)kΔx)*sin[wt-k(x+Δx/2)] Homework Equations N/AThe Attempt at a Solution I don't know how to sum...

Hi all Homework Statement I have the first three states of the harmonic oscillator, and I need to know the amplitudes for the states after the potential is dropped.Homework Equations u_{0}=(\frac{1}{\pi a^{2}})^{\frac{1}{4}} e^{{\frac{-x^2}{2a^2}}} u_{1}=(\frac{4}{\pi})^{\frac{1}{4}}...

Help with this confusing circuit! Using superposition find voltages! The problem is "In the following circuit, find the voltages at A,B, and C. Use or confirm with superposition." I was able to find the current through the top one ohm resistors as .333A (sorry didnt label on my picture)...