Transition Definition and 496 Threads

Homework Statement A hydrogen‑like ion of calcium emits a photon with energy E = 756 eV. What transition was involved? Homework Equations The energy equation: E=Z^2*E_R*(1/n^2-1/n'^2) The Attempt at a Solution First, Z=20 for a calcium ion, and E_R is the Rydberg energy 13.6 eV...

Let B and C be ordered bases for ℝn. Let P be the matrix whose columns are the vectors in B and let Q be the matrix whose columns are the vectors in C. Prove that the transition matrix from B to C equals Q-1P. I am stuck. Here is what I have. I know that if B is the standard basis in ℝn...

If we're considering fluid flow over a plate and found that at one location the flow is turbulent. Is it always the case that there is also a transition and laminar region before that turbulent region on the plate?

i need to find the orbital transition frequency given by ω=ωa-ωb a and b represent orbital states a is higher energy state and b is lower energy state

Homework Statement Let B = {(1,1,1),(1,2,2),(2,3,4)} be an ordered basis of R3, and let B` be the standard basis of R3. Find the transition matrix from B to B` and use it to find the coordinates of (1,2,3)T with respect to B. Homework Equations The Attempt at a Solution Is it...

As a material is heated, it increases in temperature until it enters a phase transition. During the transition, added heat does not increase the temperature. As this heat is being added, what is the substance? Is it a mixture of liquid and gas perhaps? If so, what are the proportions? In...

alright, so in bohr's model, an atom's electrons absorb energy and undergo electron transition. it jumps from a lower energy level (orbital) to a higher one. in time, the attraction between teh nucleus and the electron will pull the electron back to its original energy state (orbital). when...

Author: Douglas Smith, Maurice Eggen, Richard St. Andre Title: A Transition to Advanced Mathematics Amazon Link: https://www.amazon.com/dp/0495562025/?tag=pfamazon01-20 Level: Undergrad Table of Contents: Preface Preface to the Student Logic and Proofs Propositions and Connectives...

Hi! I try to figure out the probability (sure as function of parameter time) of transition particle in the hole from the first excitation state to the base state in an infinity potential hole. Because the eigenfuncion of particle there are orthogonal, the probability looks like zero -...

Hello, Homework Statement D:R3[x]->R3[x] is defined thus for any p(x)=(a0)+(a1)x+(a2)x2+(a3)x3: D(p(x)) = a1 + (2a2)x + (33)2 I am asked to find [D]B where B is the standard basis {1,x,x2,x3} I am then asked to find the transition matrix from B to C, where C={1,1+x,x+x2,x2+x3}. Based on these...

I am a bit confused about the page that I attached... I don't understand part (ii)... How can you compute X[T]X? So why is T(v_1)=v_2 and T(v_2)=av_1 + bv_2? Thanks in advance...

Hey, Here's the question Now I wanted to check if my thought process was correct and thus my formulation. Some sodium atom is initially excited, emits EM wave with stated λ and then de-excites to the ground state. However, this is Sodium so I think we approximate the energy levels...

I just watched a video of James Gates and he discussed something he called the Gross Perrywall phase transition. It was named after David Gross, I am assuming most of you are familiar with his work. In an attempt to search more about this I came up empty. I do not know if I am spelling it...

A hydrogen atom is in its ground state and is subject to an external electric field of E = ε(\hat{x}+\hat{y}+2\hat{z})e-t/\tau I'm confused as to how to compute the matrix elements of the perturbed hamiltonian since this is not in the z direction. Would I have to do something like this...

Homework Statement The problem is in the attachment, but I'll try and rewrite it... Suppose for a Markov Chain with two states, we get the following results. 1. If P0=[0 1] then P1=[.4 .6] 2. If P0=[4/11 7/11] then P0=P1=P2=...and so on. With this information, find the transition...

I cannot see why the probaability ampltiude for an initial state to turn into another state is the inner product between the "another state" and the propogator acting on the initial state, since this is just equivalent to the inner product between the "another state" and the evolved initial...

Hello, I ask for your help because I can't find any information about Earth crust-atmosphere phase transition. I noticed indeed that our feet tread upon a solid surface, while our nostrils breath a gazeous compound ! This remark seems so obvious that I can't find any description neither...

Hey, I'm having trouble understanding the trends of the oxidation states for the first row of the transition metals -my prof said that Cu is the only metal that forms a stable +1 oxidation state. But, I've done a question in hmwrk that had Cu+1 as unstable with respect to disproportionation how...

Given a simple atom like the Bohr atom (and possibly generalized to any other atom), I know that an electron can transition from one energy level to another, either by absorbing or releasing a photon of a precise hf. How much time does an electron take to make a transition from one energy level...

Hey everyone, So I'm doing a bit of research on transition probabilities for a presentation, and it seems like, from checking different resources, that in the atomic nucleus the process of transition rates to describe the rate of emission/absorption between 2 energy levels is used...

Homework Statement I have 2 bases, a = {1, x, x^2} and b = {-2 - 2x + 3x^2 , 1 + 2x - x^2 , -1 - x + 2x^2} of P2. Find the transition matrix Pab. How is this done?? Homework Equations Since this is Linear Algebra, there aren't really any relevant "Equations" as such. More logic...

Homework Statement I have 2 bases, a = {1, x, x^2} and b = {-2 - 2x + 3x^2 , 1 + 2x - x^2 , -1 - x + 2x^2} of P2. Find the transition matrix Pab. How is this done??Homework Equations Since this is Linear Algebra, there aren't really any relevant "Equations" as such. More logic based...

lim as x-> 0 (2-cos3x-cos4x)/(x). I'm not sure how the numerator became (1-cos3x)(1-cos4x)/(x) What am I missing? Could someone please point it out? Is it a trignometric factoring formula I'm not thinking of?

Homework Statement The first vibrational band in the absorption spectrum of H2CO is at 28871 cm-1. The first two bands in the emission spectrum (from v'=0 level) lie at 27021 cm-1 and 24687 cm-1. Explain these observations. Determine the band origin of the electronic transition and the...

I'm rather stuck on this problem. I seem to be having issues with the simplest things on this when trying to get started. Homework Statement There is a particle with spin-1/2 and the Hamiltonian H_0 = \omega_0 S_z. The system is perturbed by: H_1 = \omega_1 S_x e^{\frac{-t}{\tau}}...

Homework Statement I'm trying to figure out what paths the electrons take when transitioning between stationary orbits. For example if there are 4 orbits: n1, n2, n3, n4; How do I know if the electron goes from n4 ---> n1 or n4--->n3 ---->n2 -----> n1 ? I was asked to calculate the...

As i studied Fermi golden rule. It involves transition probability of an initial state transiting to a final state in case of constant potential. As i understand the product of time of transition and the frequency of transition should be very much larger than one in order that the dirac delta...

I think I said before that the recent glacial era, the late Pleistocene is actually a string of riddles. One of them is the Mystery interval. As the ice core indications in Antarctica suggested a clear warming around 19-18,000 years ago, the ice cores in Greenland did not show anything. On the...

Hi All, I know that when an atom is heated up electrons are excited to higher energy levels and upon returning to their ground/original state they release photons, I was wondering if the same kind of thing happens during a nuclear transition and what sort of processes are going on in...

Show, using directional arrows, which transition corresponds to... An energy level diagram is provided. Show, using directional arrows, which transition corresponds to the yellow light and which transition corresponds to the blue light. http://i.imgur.com/Dv670.jpg?1 I'm not really sure...

I have been trying to figure out which formula for the relationship between oscillator strength and transition dipole moment is correct. Wiki had the following formula: http://photonicswiki.org/index.php?title=Transition_Dipole_Moment f = 4.703 \times 10^{29} \bar{v} \mu^{2}_{ge}\,\...

Hello all. My question is going to require some background. I'm 23 years old. In 2011 I graduated with a BA in Political Science from the University of North Carolina at Greensboro. I've had a lifelong passion for aviation. After college, I decided to enter a professional program at a local...

Hi I am looking at strontium, and I wish to find the difference in energy between the 1S0-1P1 transition (~ 461nm) in Sr-88 and Sr-86. I don't need to calculate it, I need to look it up in a table. I thought that NIST would be helpful (http://physics.nist.gov/PhysRefData/ASD/lines_form.html)...

Energy transition in LS-coupling ! :) Hello ! I have a small question I hope someone can help me :) Lets take for example a 2 electron system with l1,s1 and l2,s2. One electron changes energy due to electric dipole. I understand the rules for electrons in electric dipole transitions: 1) Δl =...

Transition in LS-coupling confusion ! :) Hello :) Lets take for example a 2 electron system with l1,s1 and l2,s2. One electron changes energy due to electric dipole. I understand the rules for electrons in electric dipole transitions: 1) Δl = +/- 1 (parity flips) 2)...

Homework Statement In a hydrogenlike ion with atomic number Z, the energies of the allowed states are given by E(n) = (-13.6eV) (Z^2/n^2) What is the wavelength asociated with the transition between first excited state and ground state of hydrogen-like helium? (He+) Homework...

Homework Statement I'm enormously frustrated with these problems. I've been trying to figure out how to find out what the transition matrix between C and B is for about 2 hours and I still can't get it. I've watched 4 youtube videos and read two websites as well as the section in my...

Homework Statement Let V be the vector space of all symmetric 2x2 matrices, and consider the bases. S = { [1 0] [0 1] [0 0] [0 0],[1 0],[0 1]} B = { [1 1] [-1 1] [1 0] [1 2],[ 1 1],[0 1]} of V. Find the transition matrix Ps,b. Use your answer to calculate Pb,s. Homework Equations a =...

This is from Krauss' A Universe from Nothing: It seems like he's saying that before inflation kicked in around 10^-36 or 10^-34 I forget which that the universe, I'm guessing from 10^-43 - 10^-36 was in some sort of false vacuum state, analogous to the way matter changes phase from gas to...

In book http://www.phy.uct.ac.za/people/horowitz/Teaching/lecturenotes.pdf in section 2 it is described transition from Poisson bracket into Canonical Commutation Relations. But it is written The experimentally observed phenomenon of incompatible measurements suggests that position and...

Homework Statement I design a markov model to study the availability of a node which will not work unless the network work: I make the following matrix. In which (i,j) means i is node up /down and j is network up/down. R1,R2 means the repair rate for node and network. F1,F2 means the failure...

Homework Statement Explain why the 1s2s (3P) excited state of helium is metastable?Homework Equations Spin multiplicity = 2S+1 J = |L-S|, |L-S|+1,...,L+S, L+S-1,.. Selection Rules: ΔL = +/-1 Δm = 0,+/-1 Δs = 0 state must change parity Δj = 0,+/-1 j = 0 -> j' = 0 NOT ALLOWED The Attempt...

When metals such as sodium react with an acid, a salt and hydrogen gas is produced. and we know for sure the oxidation state of sodium in the compound will be +1. But for other metals such as iron, when they rest with acids which oxidation state do I use? I'm unsure if I'm supposed to use the...

Hi all How does one calculate the recoil velocity of a hydrogen atom when the electron in it jumps from a higher orbit to a lower orbit (say from 3rd to 1st) ?

Hi all, I am looking to learn more about boundary layer control devices that can delay boundary layer transition (Laminar to Turbulent) and also BL devices that can delay flow separation. I have already found loads of info on Vortex Generators but i am having trouble finding info on things...

hello, does someone knows why there's a sharp transition between water and ice? from water to gas the transition is much longer... thanks.

Problem solved.Homework Statement The boiling point of a certain liquid is 95OC at the top of a mountain and 105OC at the bottom. Its latent heat is 1000 cal/mole. Calculate the height of mountain. It's Q4 of chapter 15 in Statistical Mechanics by S.K. MaHomework Equations it should be the...

Hi: I`m new here, can someone tell me which is the difference between the transition matrix and the Jacobian?, I did some exercises of the both topics, but How is it related? Thanks for the attention Sorry for my English writing, but English is not my native language.

Hi, I wanted to know who has an idea about a mechanism to transit from pressurised environment to vacuum environemtn without losing air.I know airlock does this work but it has some air loss.does anybody have idea? I thought about some kind of bulb to be produced at the transition place,is it...

Hey all, If I understand correctly, transition frequency is synonymous with the unity-gain bandwidth frequency. With that said, if you divide the gain at the operating frequency by the transition frequency, you should get the operating frequency. Please correct my logic if I am incorrect...