Physics Definition and 987 Threads

While studying motion of car on banked curve, I was wondering, what will be the vmax when theta is equal to 90 degrees or is close to 90 degrees as it happens in a well of death which is organised in a village fair. On a banked road with friction present, vmax is given by: if we put theta = 90...

HELLO ALL, First off, my apologies if this topic is redundant, but I was wondering which programming language is widely applicable to a physics career. What positions in a Physics related career use what specific languages? What is one's best option if one is pursuing a research position versus...

We are seeking to design a project where we use a simple pendulum and a motion sensor (that will give us velocity) in order to study centripetal acceleration by essentially changing the length of the pendulum for each trial. This felt simple enough, however our professor insists that we would...

Is it a good or bad idea to mention that I am a full-time physics student while simultaneously a full-time data scientist employee while doing physics research too in my SOP for grad school? Is it seen as too confident or bragging? Or it helps me to say this? Does it make it sound bad if I...

I was reading about the FTX CEO, and it turns out that he has a degree in physics from MIT - and evidently there are a lot of folks that have taken this same education-career path. Is physics a degree a good path from quarks to quants?

I want to watch and learn more n more physics concepts with the help of animations, please tell me where can i get more n more videos like this. Such as bernoulli's theorem

What I have already attempted is on my Ipad and I don't know how to upload it on here. With hope of help DJ

What I have done is on my Ipad that I cant upload or at least don't know how to... :/ With hope of help DJ

Basically the air works like a spring, it always tries to get back to its resting state. And it's like Hooke's law, the more it deforms the more elastic potential energy it has. That's why the faster you are, the air resistance is greater. Thinking in this way, I imagine that in fluid mechanics...

Whenever I am posting anything related to "life" it got deleted! Does life not related to physics??

As QP says it is uncertain that where you found electron. But its not the same phenomena that one fan blade running so fast that you cant see where the blade is. You can only see the blade on a particular position if you use high resulation camera and its position depend on when you take the...

In 2017 I graduated with a B.S. in physics and went on to a physics Ph.D. program in the fall. After six months, though, because of mental health problems I left grad school on a "medical leave of absence" from which I chose not to return in fall 2018. After job-searching for a while, I settled...

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...

TL;DR Summary: Using the surrounding airflow to deduce the physics around UAP/UFO Now that NASA is in the mix for investigating UAP/UFOs - I started wondering at what their approach might be. I'm thinking they might be able to work from the outside in, toward the object/sensor(y) artifact...

Hello. I have been a member on this forum for quite some time and I came here because I've always had an interest in science, particularly physics. When I was in Junior High, I did very well in my science class but by the time I got to college, I wanted to make money. However, I realized that...

I'm taking AP Physics C Mechanics in school. And I have spent the most time studying for physics than any of my other classes or extracurriculars. I study by doing reading the book, working out sample problems, doing homework problems my teacher assigns us, the concept questions at the end...

Hi everyone, I finished M.Sc Physics by "Research" at a UK university during the academic year of 2015. I am an international student from India. As I did not do well in my oral presentation defending my M.Sc thesis (but it was not worst), as a result, I got a pass degree. Before the day or...

If we noticed, when we released wind from our mouth with a constant velocity ,Why is the speed of the close part of our mouth is maximum speed and while gradually moving away is also gradually weakened until it is zero? How it can be resolved using in mathematical expression?

A V-shaped tube with a cross-section A contains a perfect liquid with mass density and length L plus and the angles between the horizontal plane and the tube arms as shown in the attached figure. We displace the liquid from its equilibrium position with a distance and without any initial...

Hi, I am a senior at a large research public university in the US (UC Davis). I really want to go to grad school but I am not sure if I should apply this year. I am only 19 years old (I graduated high school with an associates in physics) so this is only my second real year of college and I...

Hi All, I am currently a third-year Ph.D. student working on PET image processing and tracer kinetic modeling, and about to graduate in two years. After three years study, I developed a high interest in clinical-related projects and found medical physics path is very suitable for me. I wish...

We did a lab in class on how to calculate it but he collected it and its days later, can't remember how to attempt it.

I'm not sure where to start, I feel like I'm missing the mass but it is not listed.

I 'v worked as a physics teacher in a famous senior school since I got my degree in 1996. And, reading is one of my loves.

I'm currently a freshman physics major coming into university from an early college high school, so I was lucky enough to have some experience taking college level physics courses before I came to university. I didn't think that those courses were rigorous enough in comparison to what I've heard...

Is there any use for this concept in classical branches of physics? Can it be of any help for a physicist in resolving problems (or, at least, in resolving them more efficiently when compared with traditional methods)? The word «classical» means exactly that, i. e. mechanics, hydrodynamics...

I am not cooking up a torture device or a weapon. In fact, I have been spending time with skeletal models. I just want to be able to create the ability to perceive pain. Even if I were to try to work this out myself and get some kind of answer that relates to physics, how would I know for sure...

Summary: For anyone that might have started off in physics but for their head turned by engineering I am just wondering if there’s many out there that started off in physics before discovering engineering was more for them, what made you switch? My degree is in engineering & physics and I...

If you was restricted to only studying one physics topic for the rest of your life what would it be and why? Don’t overthink it by trying to determine what I mean by topic etc just tell me your favourite subject and why do you like it so much 😃

I was thinking about an idea of a calendar epoch based on the field of physics, and its thinking about which event should be used as the epoch so I have this idea and just wondering what you guys might think about it I initially landed upon two ideas, one pretty ancient and the other kinda...

I have made solutions a-d, but my fermi velocity seems too big.

At what point during study for a reputable physics degree should one normally encounter the "Jansky"? I.e., at what point is it reasonable for a lecturer (or textbook writer!) to assume the existence and meaning of "Jansky" as basic prior knowledge?

I first thought that the angle would have to be maximum when it is closest to the critical angle for total internal reflection. From my lectures the equation for the critical angle is ##\theta _1>\ sin ^{-1} \left( \frac {n_2} {n_1} \right),## so as ##n_2 = 1##, we have ##\theta _1=\sin...

In physics pedagogy, the routine is to introduce new material in lectures and then practice the material in end-of-chapter problems. This problem, shown below, familiar to many of us on PF, is my favorite. One must get to intermediate mechanics class in undergraduate physics studies to finally...

Hello. I am a non-traditional undergrad, currently conducting materials and electrochemistry research (optics, photonics, semiconductors, energy storage). Before going to college (post-secondary), I had extensive experience in bioinformatics and biomolecular research. Although it is not yet the...

Hello ! I have a problem understanding how light works in multimode optical fiber. What do I mean in single-mode optical fiber there is single light which contains information. In multimode there can be multiple lights with multiple information. Like here 1st picture contains multiple...

I'm a retired Engineer. I want to learn methods to formulate equations to ask questions of physics phenomenon. What school teaches this and by whom? Can anyone point me there?

Alain Aspect got a Noble Physics prize for experiments with entangled photons, establishing the violation of Bell inequalities and pioneering quantum information science. According to this article https://phys.org/news/2022-10-quantum-entanglement-spooky-science-physics.html Aspect is quoted as...

Quantum entanglement...

https://www.nobelprize.org/prizes/physics/2022/popular-information/ Using groundbreaking experiments, Alain Aspect, John Clauser and Anton Zeilinger have demonstrated the potential to investigate and control particles that are in entangled states. What happens to one particle in an entangled...

My child is learning the periodic table for science class, memorizing elements 1 - 20. Middle school. While I assisted, I mused on the elements and on which are discussed most in physics classes. Here is my ranking of the top three: 1. Z=1 2. Z=2 3. Z=92 Do you agree?

Interesting... "Physics Nobel nominees, 1901–70" https://physicstoday.scitation.org/do/10.1063/PT.6.4.20220929a/full/ is an update extended to 1970 of "Physics Nobel nominees, 1901–66" (2017) https://physicstoday.scitation.org/do/10.1063/PT.6.4.20170925a/full/ related...

Hi, I'm trying to calculate my own physics problem but didn't get it something. When I'm trying to calculate the impulse of the object when it's hit by F=10N force in the smallest possible time, then should I write: dP/dt = Fnet => dP = Fnet*dt ? Another question: In general, if I calculate...

Hello I am a physiology student who is curious about the physics underyling blood flow and pressure. I have taken physics classes however at the elementary level the focus is on ideal fluids in systems with no friction. I would appreciate any answers or if you could point me in the right...

what is the reason for that the energy hypersurfaces in a phase space, which belong to systems with constant energy are closed? ( see picture )

Summary: Predictions for the 2022 Physics Nobel Prize As the Nobel week is coming closer, what are your predictions for this year Nobel Prize in physics?

Hello, I am trying to figure the strength (in lbs) of a strap needed to attach 2 Rolls together without breaking. Each wheel has a weight of 1000lbs and a diameter of 30in. If there is required information missing, let me know.

Hi all! It's been a decade since I graduated with a bachelor's in philosophy. I went to an ivy planning double major with physics, but I ultimately dropped the latter after my introductory courses and graduated with a poor GPA (2.7). To save you the sob story, I basically had no ability to cope...

Homework Statement:: nuclear/atomic physics research problem Relevant Equations:: research problem please Hi all Anyone who can help me to get a research problems based on advanced nuclear physics please... Thank you all

I am currently a final-year undergraduate student whose primary major is Physics. I double major in Computer Science, and my grade is currently near-top in my department from a prestigious university (non-US, top in my country). My research experience during undergrad has primarily been about...