Behavior Definition and 337 Threads

Hello, guys! I have a question. How can I prove the behavior of a particle subjected to an infinite potential? Will the wave function exist?

The behavior of those two function keys at the top of my Dell Windows 10 laptop recently changed, and I'm trying to figure out how to change it back to normal. At the upper right of my keyboard there are these function keys with 2 functions apiece shown: prtscr/F10 home/F11 end/F12...

In many standard texts the behavior of Foucault’s pendulum is solved by adding the Coriolis force term to equation of motion and deriving two coupled differential equations. Here’s an alternative approach: 4 assumptions are made: Mathematical pendulum (point mass attached to massless rigid...

Hello! I am trying to align a bow-tie cavity and I noticed a behavior of the beam spot that I can't explain with my (limited) knowledge of cavities. For reference, I am scanning the current of the laser in order for the laser to follow the cavity. I attached below 3 frames from a video I took of...

Hello everyone, I would need help to model a motorized system controlled in a closed loop. It is a personal project. At first, I am looking to obtain the transfer function and simulate the system on computer. In a second step (not the aim of this thread), I would like to use this simulation to...

Dear all, I am writing a vehicle dynamics simulation for my thesis topic. However, I came into a conundrum when testing the cornering behavior of my vehicle. The problem is inherently complex due to its many subsystems, but I'll try to give as much detail without bogging the thread down...

I need a help in the following problem. I feel that the question is stupid. Take a function ##f\in C(\mathbb{R}^3)\cap L^1(\mathbb{R}^3)## and a number ##\alpha\in(0,3)##. Prove that $$\lim_{|x|\to\infty}\int_{\mathbb{R}^3}\frac{f(y)dy}{|x-y|^\alpha}=0.$$ I can prove this fact by the Uniform...

Hi, I was told that "Every behavior beyond our most primal behaviors are learned/acquired behaviors". Is it true? If so, is there any room to choose what behavior to learn? Thank you for your time Cheers, ORF

Good day. We know how simple objects, such as 1D wires behave when a simple harmonic wave travels along a wire, or two wires knotted togethe.We also know what happens if you excite a circular thin disc with a single frequency. Are there some material I can read on, that considers the effect...

Hello! In most of the modern mass measurements in a penning trap, they cool down the degrees of freedom of the ion (the 3 eigenmotions) using resistive cooling, in which they couple an external circuit to some of the electrodes of the trap and the ion is cooled down to the temperature of the...

Greetings! In statistical mechanics, when studying diffusion processes, one often finds the following reasoning: Suppose there is a strictly positive differentiable function ##f: \mathbb{R} \rightarrow \mathbb{R}## with ## \lim_{x \rightarrow +\infty} {f'(x)} = a > 0##. Then for sufficiently...

Hello Everyone! I read about the function of the ruby laser which made from ruby crystal and has three energy levels. There is radiationless transition to what so called metastable level and then the electrons there stimulated to transit to ground energy state. The question is: does this...

Homework Statement:: I am studying on my own, so I don't have a specific homework statement, but want to make sure I am thinking about things correctly. What I am wondering is if you have equivalent wires, let's say both are made of copper, and one wire has three times the voltage of the...

Considering the device above, which uses electric and magnetic fields placed properly to avoid charged moving particles with velocities different from the ratio ##\frac{E}{B}## to exit, getting deflected upwards or downwards. All that is easily demonstrable by equalling the forces acting on the...

In this explanation we need to involve the Dirac delta functions(maybe) but I clearly have a difficulty in understanding it can some one explain me the whole concept of constant or non constant volume charge density.

Does the anomalous behavior of liquid water between 0 and 4 Celsius degrees (i. e. expands while cooled) have something to do with the other anomalous behavior of ice (i.e. floats in water)? Are those behaviors correlated ?

Hello, using computation simulation, can the statistical behavior of many particles be derived through deterministic classical mechanics?

determine the behavior of y as t →∞. If this behavior depends on the initial value of y at t = 0,describe the dependency \begin{array}{lll} \textit{rewrite} &y'-2y=-3\\ \\ u(t) &=\exp\int -2 \, dx=e^{-2t}\\ \\ \textit{product} &(e^{-2t}y)'=-3e^{-2t}\\ \\ \textit{integrate}...

I begin with the values of certain variables obtained from the references cited. Ωm = 0.315 [1] https://ui.adsabs.harvard.edu/abs/2020A&A...641A...6P/abstract . H0 = 70.0 (km/s)Mpc = 1/(4.408 × 1017) s [2] https://en.wikipedia.org/wiki/Hubble's_law#Measured_values_of_the_Hubble_constant H0 was...

Hey Guys, i try to solve the question mentioned above. But I'm hones...i have no idea to solv this. I need a kind advice. I tryed to find help in the internet but it's impossible. You can see the hole exercise in the figure.

What would happen if the water pump output or outlet is closed and pump continues running. Will the rotor or impeller inside just rotate and rotate slowly just raising temperature of stuck water in the impeller or would there be sudden increase in pressure immediately damaging the seal. This is...

I often hear about non-linear or chaos having order, and have difficulty grasping the concept. For example, you have weather disorder, how can it bring order? or you have Covid chaos, how can it bring order? Can you give some examples of the concept? What is fact, myth, and misconception...

$y'=ty\dfrac{4-y}{3};\quad y{0}=y_0$ separate $\dfrac{3}{y(4-y)}\ dy=t\ dt$ integrate $3\left(\frac{1}{4}\ln \left|y\right|-\frac{1}{4}\ln \left|y-4\right|\right)=\dfrac{t^2}{2}+c$ hopefully so far... actually it kinda foggy what they are eventually asking for also why is t in different cases

So I know that a compass points to the south magnetic pole, that is near the north geographic pole. Let's consider the Earth to be a magnetized bar with all 4 poles aligned (for didactic purposes). The compass will try to "follow" the south magnetic pole, so, if I am in the Equator for example...

When two BHs collide the resulting single BH bulges and contorts until it settles down to a stable state. 1) Does this mean that during this 'settling' period the mass internal to the merged BH is not (yet) a singularity, but instead two 'singularities' spinning down around each other in...

I have a problem asking to show that a certain function approaches a quadratic for large values of the variable. And I realize now that this is a skill with which I am totally unfamiliar. Can't use a Taylor series in y= 1/x because the value at y=0 is infinite. Would appreciate a recommended...

I know that current chose the way with the lowest resistance but this is becouse that few electrons will go on the two path and the smallest number of electron .,Is the path that the current go throw . But how does a single elelctrons "choose" is path . And also if I connect two wire to a...

My final year experiment involves vibrating a granular conveyor with the same amplitude at at different frequencies. (See picture for experiment set-up). Between 5-115 Hz, the glass beads bounce erratically. As soon as the frequency hits 120Hz or higher, the beads remain on the surface, and can...

Since the membrane doesn't break, the wave is continuous at ##x=0## such that ##\psi_{-}(0,y,t) = \psi_{+}(0,y,t)## ##A e^{i(k \cos(\theta)x + k \sin(\theta)y - \omega t)} = A e^{i(k' \sin(\theta ') y- \omega t)}## Which is only true when ## k' \sin(\theta ') = k \sin(\theta) ##. From the...

No attempted solutions.

Hello! I am confused about when the nuclear force is attractive and when not. Based on deuteron (the book I am following is Wong), we see that we can't have bound state with isospin T=1 (otherwise we would see, for example, a stable double neutron and no proton nucleus). Also, in the book I see...

How do the pm2.5 (particles of 2.5 microns or less) diffuse compared to gas. I noticed when i turned on my air purifier at night and turned it off at daytime. The pm2.5 particles levels go back to high after 2 hours even when my doors and windows are closed. Do pm2.5 particles pass through...

Hello, I've searched a bit about about the thermal radiation behavior of non-black body and I'm confused. I've read that the color is dependent only on the temperature so every thing display the same color as a black body. But at the same time I've read that materials don't always follow the...

So the other day I plugged in one of those cheap-o OBD-II bluetooth adapters and looked at my car's boost pressure on my phone. Moat of the behaviors look reasonable. Others, not so much. Car is an Audi A3 etron. Has a 1.4T engine putting out 150 hp and an electric motor putting out 100 hp...

The last couple days at work, one of the microwave ovens in the kitchen has been acting strangely. Today it seemed to get potentially dangerous, so I marked it "Out of Order" for now, and would like to figure out if it is hopeless, or if it can be recovered easily. I first noticed a couple...

If it is the asymptotic behavior of the Airy's function what it's used instead of the function itself: Does it mean that the wkb method is only valid for potentials where the regions where ##E<V## and ##E>V## are "wide"?

Summary: Relation between deformed foil and friction force Good morning everyone, i have a small leaf or steel that is bent from one side by a Pressure of many bars. in front of the leaf there's a rotating disk, separated by the leaf by a small gap. this leaf, as it deforms, wins the gaps and...

One thing about terminology that I think c/should be changed for Continuum Mechanics: 1) 'Ideal Fluid' Describe Behavior of Matter in Phase States of liquid/gas and sometimes Bulk-Solid: -continually deform under applied shear stress or external force -usually zero shear modulus -behavior can...

I want to model a sensor with the static behavior: y(t)=a+by_{0}(t) using a first order lag: G(s)=\frac{K}{1+Ts} However, if i try to convert this order lag in time domain and set the derivative as 0, what i get as static response is: y(t)=Ky_{0}(t)=by_{0}(t) And the a constant has...

Please help in the explanation of BH curve (See attached file). At the starting point, more current is required to bring the material to its magnetic saturation point( in fig form origin to pt.a shown by purple line ) as compared to when the material is fully demagnetized and then brought to...

Homework Statement Homework Equations The relevant equation is that sqrt(z) = e^(1/2 log z) and the principal branch is from (-pi, pi] The Attempt at a Solution The solution is provided, since this isn't a homework problem (I was told to post it here anyway). I don't understand why the...

(mentor note: this is a homework problem with a solution that the OP would like to understand better) In Taylor's Complex Variables, Example 1.4.10 Can someone help me understand this? I don't know what they mean by (i, i inf), or how they got it and -it

For US residents. If you have the above circuit breaker put in your panel phase to phase (2 pole).. and one of the phase touches neutral.. would the circuit breaker trip or not? It's rated 240 volts.. yet one pole only has 120 volts.. would that 120 volts shorting the neutral trips it? This...

How does particle physics explain the doppler effect? (including blue/red shift)

Recently whenever I visit the Yahoo website on my Android tablet, my keyboard settings are scrambled to the point where I can't enter info into text fields online; for instance, a search term into Google. A cursor will not appear in the text box. I can recover by resetting my keyboard...

Homework Statement Use Max Planck’s quantum theory to explain the following behavior of photoelectrons. a) Low-intensity light does not release any photoelectrons. What will happen if the light is made brighter? Explain your reasoning b) Low-intensity light releases photoelectrons. What...

I've asked a related question before, but this is new. I have one of these propane heaters: As months go by, it has an increasing habit of spazzing out. It will frequently do this in a strong gust. But with even a little wind, and more often when it is set on low, it will spontaneously and...

My wife keeps telling me that I need to avoid sitting at the computer so much. She sent me the following link. http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0195549 I confess that I don't find the data presented in the article very convincing, and I would appreciate comments...

I plan on teaching high school education because I am crazy and enjoy learning. Anyway I noticed that in my school if a teacher is strict or rude the students tend to be extremely rude and act poorly out of spite. And teachers who are very kind and still tries to ensure all work is done, the...

http://www.news.com.au/lifestyle/real-life/news-life/lotto-winner-kills-himself-after-losing-the-winning-tickets/news-story/56f0b192b22d6ebb4d3906a9f65b5211 What is the brain circuit responsible for this behavior.. for example.. a person used to be happy, then one day he won a lottery then...