Applications Definition and 627 Threads

Hi!!...There's a growing popularity on these transformers as they are being used to get 120/240 split phase out of a single 120v phase, read a recent comment about them not being as safe as an isolated transformer since their inner windings are not isolated....is an encapsulated general purpose...

In my physics lab we determined the spring constant of a steel spring. This turned out to be 20 N/m. However, when I search online, I can't see any uses of springs - I know springs can be used everywhere, but nobody seems to specify their spring constant. Anyone know of any applications?

Hello. This is my answer: https://up.maralhost.com/imagef-37f78ec7d1bd1-jpg.html Can someone tell me If I am wrong? Book's answer:

Hello! I was just started the topic gyroscopic motion These questions come to my mind. please guide me that how gyroscope is used in mobiles what is its function in mobiles and also want to know their role in aircrafts that how it helps pilot to determine the position of aircraft etc. Please...

What is a phthalate-free substitute for DEP oil for agarbatti/incense stick manufacturing? As phthalate is harmful to humans and Incense stick smoke is around us regularly to avoid such dangerous problem we are looking for Phthalate free for DEP Oil.

An example of physical applications for the gamma (or beta) function(s) is http://sces.phys.utk.edu/~moreo/mm08/Riddi.pdf (I refer to the beta function related to the gamma function, not the other functions with this name) The applications in Wikipedia...

As an example, consider a vector-valued function of the form ##f(x,y) = (g_1(x,y),g_2(x,y))##. I typed up one example on wolfram to see if this could be visualized https://www.wolframalpha.com/input?i=plot+f(x,y)+=+(x+y,xy) which was inspired by this question...

Dang this place has a topology and analysis section too, nice. This is probably a graduate level topic, but I am by no means an expert on these subjects, just things I learn from wikipedia and other people. The commutator is an operation on two linear operators (most often matrices) of the form...

I'm glad there's a section here dedicated to differential equations. I've seen in the fundamental theorem of linear ordinary systems, that, for a real matrix ##A##, we have ## d/dt \exp(At) = A \exp(At)##. I'm wondering if there are analogs of this, like for instance, generalizing a system of...

F = -F

Ubuntu 22.04.1 has been released recently, and the Software Centre shows that my system is ready to upgrade. I want to upgrade, but I am a bit afraid because there is no option to rollback the upgrade. I have a number of applications that are essential and I need them to work properly: MATLAB...

Hi, I am experimenting with a design for an inductor for audio applications, and am using a high permiability toroid (12,000) having a closed trifilar winding. In this instance , it is 39T x 3 twisted wires connected in series being 117 turns in total, giving approx 180mH inductance. In...

Summary: TL;DR: Doing an assignment in which we are to apply Dalton's Law to a product to improve/ better it OR create a completely new product using the law. Let your creativity run wild! Hi there! I am doing an assignment in which we are to apply Dalton's Law to a product to improve/ better...

Inductance of antenna coils of different shapes can be estimated. Some examples are: A circular coil with single turn. N turn multilayer circular coil. Spiral coil. N turn squae loop coil. etc. For plannar design (spiral, rectangular, etc) I have used this reference (from pag. 9 onwards)...

I've heard virtual objects are used in cinema halls I'm not sure of what that means, can someone explain this to me please? And btw by virtual object i mean when diverging rays from real object passes through a convex lens, the rays will converging and if you'll place a plane mirror infront of...

Merely studying formalism and theory in quantum mechanics is too dry and demotivating for me. I would appreciate being able to do more practical calculations and realistic applications instead of canned problems. Is there a way to balance this theory and applications? I have thought of doing...

Humanoid Robots. Just requiring your thoughts on this. Major events,functions example Weddings, Birthday, Anniversary celebrations, Cricket, Football live match etc are captured using Video camera/s with Humans performing the function with later on the captured recorded video is edited with...

Physicists have proposed linking a global network of cesium clocks in a phase-coherent entangled state, for example in the article A Quantum Network of Clocks (arXiv:131045v1). My audience would like to know how better synchronization or more accurate timekeeping would lead to advances in our...

Ubuntu has given me a far more stable working system compared to Windows and its buggy updates. But, once in a while, I do find GNOME becoming slow or even crashing. If I find that the GUI is becoming unresponsive, I promptly restart GNOME using Alt + F2 → r → Enter This does the job most of the...

Is someone has already heard about this book wrote by Andre I. Khuri (Professor emeritus in science at university of Florida) ? By the table of contents the book seems to cover a lot of things in calculus/multivariable calculus and in a rigourous way according to the preface (they argue that...

Summary:: 3.0 gpa(which may be considerably bad :((((), 3 research experience(1 summer term,1 fall,1 spring term) and 1 project in undergraduate Hello everyone these are those what I had in undergraduate physics.I am going to apply to top tier schools in France,Taiwan and China.Do you think...

Came across this today, a fourth order PDE - the Kuramoto–Sivashinsky equation, apparently used to model flames https://en.wikipedia.org/wiki/Kuramoto%E2%80%93Sivashinsky_equation Any other examples of high order PDEs with actual applications?

Summary:: A nitric acid solution enters at a constant rate of 6 liters / minute into a large tank that originally contained 200 liters of a 0.5% nitric acid solution. The solution inside the tank is kept well stirred and leaves the tank at a rate of 8 liters / minute. If the solution entering...

Continue reading...

Hello everyone, My pc is getting too full so I got an external SSD (1Tb). Would you suggest moving all the applications on the external SSD or keep them on the pc's hard disk? If so why? Or should I only move all the "data" to the external SSD? What is your recommendation? Thank you!

Scientists finally created a 2D Supersolid! There existence has been predicted since the 60’s and now we have them. The scientists who created it don’t really know what it could be used for as it’s so much in the infancy stages, it’s practically a zygote. As an aspiring futurist, I was wondering...

Hi, I am a mechanical student. I would like to ask are those drying kinetic equations for food drying applicable in drying a paperboard? Thankyou :)

Hi guys, how are you doing? My maths teacher asked me to work on and deliver an engaging insight-oriented "lesson" to my class, about physical/engineering and real-world applications of differential equations, in order to better get the meaning of operating with such mathematical objects. Of...

Here is a simple way to get Euler's relation for those learning pre-calculus/calculus, so the trigonometric addition formula and the derivative of sine and cosine are easy. We will assume some basic knowledge of complex numbers and properties of Euler's number, e. Consider a small segment of...

dearMoon website Japanese billionaire to fly eight members of the public on SpaceX moon flight The number of spaceflight seats open to the general public (not only multimillionaires and career astronauts) just increased from 2 to 10. And it's not just orbiting Earth - it's going to the Moon...

https://www.physicsforums.com/attachments/277763

Hello. Questions: do you know any applications of spherical geometry in physics? Are there any relations between spherical geometry and hyperbolic geometry? Why does Riemannian geometry use sphere theorems so much? Thank you.

Hello. So, the question is do you know any applications of topological spaces which are not homeomorphic to R^n in physics? Motivation for the question i am making: as i think if a topological space is homeomorphic to R^n then differential calculus is allowed on it. Modern physics uses i think...

Hello everyone, My question for this thread concerns the application of (mainly) mathematical analysis to fields such as signal processing and machine learning. More specifically, I was wondering if you happen to know of some interesting application of things like measure theory or functional...

Continue reading...

What would you say is essential reading for those of us who want to understand how exactly is QFT benefiting from QI? Can anyone give a summary of what is happening, and where to start reading? (at postgraduate/entry-research-level).

Hello friends. I have this question about how the Einstein field equations were derived, the assumptions behind them and the possible applications of them. What could their solutions be?Also, how are they used in cosmology and in the big bang theory?What about astrophysics? Thank you very much.

Given $\vec{r}=t^m* \vec{A} +t^n*\vec{B}$ where $\vec{A}$ and $\vec{B}$ are constant vectors, How to show that if $\vec{r}$ and $\frac{d^2\vec{r}}{dt^2}$ are parallel vectors , then m+n=1, unless m=n? I don't have any idea to answer this question. If any member knows the answer to this...

Sometimes I run into this claim But what are some examples? Is it perhaps the discovery of binary numbers and then their much later application to computers? Or what about this?

Recently I started wondering why there seems to be so few practical/engineering applications where you need to calculate the momentum of something. I must emphasize that I don't mean usage of the concept of momentum or the law of conservation of momentum, but the value of the quantity itself...

Hello, I have a simple question : are there, today, practical applications of qft (elsewhere than in particle physics) ? By applications, I mean, did we design stuff with the help of this theory ? Thanks !

θ = 4 μs = 1 Fnet = Wpararell + fs m.a = 1/2.m.g.sinθ + μs.1/2.m.g.cosθ (divide by m) a = (g.sinθ+μs.g.cosθ)/2 a = ((9.8)sin4 + (1)(9.8)cos4)/2 a = 5.23 m/s^2 hello guys, I'm having trouble with this problem. Can anybody help me correct my attempt and explain it to me?? thanks

Hello guys, I'm a physics graduate student and recently I've questioned myself about convection when reading about heat transmission processes. At least throughout my life, whenever I heard someone talk about convection, there were examples related to air and water convection currents, however...

Has anyone created a thread on Free Body Diagram on assembly having many components ? For example a Casing having premium threads in both end and a set packer within it. What would be the FBD equations to determine various forces and reaction forces

Hi, I'm already familiar with differential forms and differential geometry ( I used multiple books on differential geometry and I love the dover book that is written by Guggenheimer. Also used one by an Ian Thorpe), and was wondering if anyone knew a good book on it's applications. Preferably...

I'm starting to write my statement of purpose for Physics and Astronomy graduate schools, but I'm not yet dead set on which field I want to specialize in. Considering this, is it ok for me to write something along the lines of, "I want to either do field 1 with professor I or do field 2 with...

Hi everyone! My name is Cristian and I would like to ask you for advice. I am trying to build a shredder for solid recycled plastics (particularly PP and PE) and I am seeking and motor to rotate the shaft of this device. Specifically, I require a motor with a 75 RPM speed and over 20 Nm torque...

I am a mechanical engineering student and I know that our school will use ANSYS as simulation tools in the fall semester. And when I talk with one engineer, I know that they will use different kinds of ANSYS tools for the same project. The engineer uses ANSYS’s tools: Mechanical, Fluent, Maxwell...

I'm looking at changing my university degree to go back and study science with a major in physics. I've always had a deep interest in the way the world works and how much of what happens around the world and the universe seems to be governed by simple laws, or some cases not so simple. My main...

The study of these theories is interesting in itself,if only to understand Godel's work. My question concerns their practical applicability to the solution of problems in different disciplines like mathematics, engineering, physics and the like. Are there reasons for studying them beyond the...