Math and physics Definition and 203 Threads

I was thinking of the wavefunction in QM but I'm not sure how it's used and when.

I have a quick query. When I'm applying to jobs related to math and physics (software engineer, data analyst, data scientist, python developer, quantitative analyst, programmer, research analyst, etc), I am seeing a good portion of them requiring a security clearance. Is this something others...

Hypothetical: Approximately how far from Earth would a star the size of the sun have to be for an object the size of a quantum particle to cause a total eclipse of that star when orbiting the Earth at a distance equal to that of Earth to the center fro the moon?

This might be total nonsense, but the thought popped into my head while I was trying to get to sleep, so I thought I see if I could find any advanced help with the following hypothetical: If light were instantaneous, how far from Earth would the sun have to be to cause a quark orbiting in place...

Hello, So, I'm looking for some advice from people here who have experience studying physics outside of an academic program. Recently, I've started Griffiths E&M. Although it hasn't been long, I've been having an absolute blast: like, heart-fluttering, "helping me with suicidal depression"...

I am currently in my second year of studying a bachelor in physics and applied maths. My aim is to one day do research in physics. I am particularly interested in subjects such as gauge theories, AdS/CFT and gravity. My question is whether it would be more beneficial to switch from studying...

Homework Statement: Hallo. Can somebody explain to me what's the importance-use of unit vector in the below (second) equation? Why isn't the first equation just enough to describe r? What's the reason for unit vector to even exist? Homework Equations: in the photos

Homework Statement: what is the mathematical explanation for fresnel lenses Homework Equations: No equations were provided I'm going to post a link to one article I found that I think has the answer, but I couldn't understand because of my lack of knowledge in physics and math...

Is there any theory in physics that can be modeled in any type of space (Hilbert space, Euclidean, Non-Euclidean...etc)? And if yes, could that theory also contain/be compatible with all types of (physical) symmetries?

I am a beginner and I know a little bit of Math. Can anyone tell me what concepts in Math do I need to know to see one ball jumping in space? I need names of the concepts which let's me realize this Jumping Ball. Thanks.

What math and physics is needed for biophysics research? Specifically having to do with medical applications. I am undergrad student interested in physics and medicine.

Throughout a degree as a physics major, you take a bunch of math courses, and it's safe to say that you should have a good understanding of all the calculus and algebra courses. But what math subject/specific course should I master at a spiritual level? Especially ones that are needed for...

Hello everyone, Physicsforum has always helped me whenever I get into predicament. So this time again I want the help of experienced people. I did a great deal of hard work for understanding the true nature of calculus. I read Newton's original works and I found that his sole purpose of...

Hello everyone, since recommendation letters are usually important when applying for graduate studies, I'd like to ask the following: What do you guys think of the statement 'The best way to maximize the "goodnes" of your recommendation letter is by not caring about it' ? I guess it's...

Homework Statement tl;dr: looking for a way to find the intersection of three cones. I'm currently working with a team to build a Compton camera and I've taken up the deadly task of image reconstruction. Background Theory: https://en.wikipedia.org/wiki/Compton_scattering For a single Compton...

So I decided to go for two degrees instead of one so the goal is two associate degrees.One in Physics and the other in Mathematics anyone have any advice on the this math heavy course of action I’ have set for myself.

Hi, I have this equation about Rossler system, describe as Eq. 1. Given that the chaotic behavior of the system for parameter values a=b=0.2 and c=5.7. How can I calculate the chaotic sequence for this equation below. The equation also referred from...

Homework Statement Consider the equation for the friction force Ff = m FN. is it possible to express the friction force as a tensor? If so, what rank tensor is it, and what are the ranks of the tensor m and the normal force FN? Homework Equations Ff = mFNThe Attempt at a Solution [/B] So I...

Homework Statement I don’t understand why this would relate to cosine and not sine, if gravity is often assiciated in the up and down part of a free body diagram. Homework Equations Wg=mgdcos(theta)[/B]The Attempt at a Solution Is it because it would depend on your reference frame?

I'm learning APL and this is how a vector is defined https://tryapl.org: All data resides in arrays. An array is a rectangular collection of numbers, characters and arrays, arranged along zero or more axes. We can use more specific terms for some arrays, like a single number is a scalar, a list...

What are the conditions for applicability of u-substitution, i.e. when does it not work? Note that I'm not asking when is it a bad idea (that won't get you any closer to evaluating the integral), but are there any conditions that cause u-sub to yield wrong answers? I started running into what I...

Hi Everyone still undecided on weather to go for a Applied Math degree or go with Physiscs

Considering one is taking all the required math courses for a typical physics degree, what math electives are most crucial to the field of cosmology/theoretical astrophysics? Also, is it true that mathematical modeling courses(discrete and dynamical modeling across physics) are more important to...

I am a high school student who is planning to start Young and Freedman’s University Physics out of personal interest. However, I am not sure what level of math is required for the book. I haven’t learned Calculus yet, so I’m planning to study Strang’s Calculus alongside Young’s University...

I’ll be taking the year long physics sequence at my college this fall and I want to know what specific math topics I should master, so that I can conquer my first year of physics. I’m planning to brush-up on any necessary topics from algebra, through precalc, and including calc 1. It’s an honors...

I am taking one year break to work and relieve myself from the burden of the university. I studied physics and minor mathematics. I will apply to PhD or Masters next year. (I will take the GRE next year too). I took the following materials for my minor math: - Real Analysis - Abstract Algebra -...

Hi all My name is Al Saqib. I am an undergrad student at University of British Columbia, Vancouver. I am studying Economics and Mathematics. My favorite subject is Physics. I have taken a couple of Physics courses so far. I am planning to take more of them, including general relativity.

I have spent the past few months incredibly conflicted. I just finished my freshman year of undergrad (at a 4-year American university) and I have discovered Biophysics, a field which I really want to pursue. However, I still love math and want to continue with my Applied Math major. I'm afraid...

I am so happy to be a part of this group. Thr pursuit of knoweledge is the way to learn.

Has anyone been successful self studying mathematics and physics? By successful I mean to achieve your goals to study and have firm understanding in the subjects. How did you do it? How long did it take?

Hi! I just started high school and have developed a passion for cosmology and astrophysics. I would like to know if I really need to be very good at physics and mathematics (and if there is more that I need to be good at) and where do i find a job (spaces like N.A.S.A., SpaceX etc). Thanks for help!

Homework Statement Considering 2 scattering particles with momenta ##p_{1}, p_{2}##, where ##p_{2} = 0## in the Lab reference. The momenta of these 2 particles after elastic collision are ##p_{1}', p_{2}'##, respectively. Due to the 4-momentum relation, we have ##p_{1i}p_{1}^{'i} = e_{1}e_{1}'...

Hello PF, I am a physics junior and I lately decided on a math double major. I found the topics and classes and interesting enough to do so. Now my prospective fields are either high energy physics or quantum information. And so I wanted to tailor my math electives to help me within these...

Hello everyone, I am currently attending a community college and at the end of spring, I will graduate with associates in mathematics and physics with roughly a 3.90(depending on the what GPA you're talking about). Physics and math are my life and I dedicate virtually all of my free time...

I know there is a lot of questions like this in this community but I need a personalized answer. I am 15 years old. I've always loved physics and always asks questions. My wish for learning physics dates back to 2016. Yeah that's right, I've spend two years just looking for the right resources...

Hiya! I'm an ameture "maker", and recently I've become interested in air pressure and such. I thought a fun project to help me learn about it would be to make one of those small air cannons that are powered by bicycle pumps (safety first and all that). One thing confuses me though: how exactly...

When solving a math or physics problem, the process usually starts with recognizing what type of problem it is and which equations need to be used. This is simple for more straight forward problems. If they give you mass and acceleration and ask you to find the force, you have all parts of the...

Homework Statement You have the data of two measured variables x and y. According to a theory the variables relate to each other as the non-linear functions shown below where A is a constant. For each case, decide which variables you have to choose to plot so the expected graph is a straight...

Hello everyone. As the title says, what math do I need to know to fully understand classical mechanics, relativity, quantum mechanics... I am studying from a calculus book, but this is mathematics in general it is not focused on physics. So, apart of this calculus book I'm studying from, what...

My undergraduate degrees are in math and physics, but I decided to apply for graduate school in engineering (specifically environmental engineering). I was lucky enough to be accepted to almost all of the programs I applied to, but I only received one research position offer (that would pay for...

Object A starts from the origin velocity 3 m/s and object B starts from the same place with the velocity 5 m/s, 6 seconds later. When will B Catch up with A?

Hello, I am looking for some advice. I am currently going into my 4th year of my Physics degree, going to be graduating in spring of 2018. One of the other students in my major has come up with a way to finish his major in Physics, while also taking the required classes to finish the Applied...

I am an engineering major at Los Angeles Pierce community college. I have been for the last years working 40 hours a week in order to sustain and put myself through community college. After I transfer, I don't plan on working. Now, each semester due to my work schedule and life happening, I can...

It would be greatly appreciated if anyone can provide me with any information on pursuing a second bachelor's degree in Physics in the Boston area. Background: I have a BA in Communications (3.3 GPA) and have been a writer for 10 years. I went back to school last year in the Midwest to pursue...

Hello, I've a following question: Is necessary know well func. analysis, and all its theorems to handle well quantum physics...?

Hello everyone, My question is, where should I start? what books or websites would you recommend for me? Math and physics are very broad subjects so I'm not sure where I should start and what path I should take. I don't want to overload myself with information, but instead learn the most...

Hi everyone, which text on methods is better between the following two : 1) https://www.amazon.com/dp/0486691934/?tag=pfamazon01-20 2) https://www.amazon.com/dp/3319011944/?tag=pfamazon01-20

Does anybody have a list of companies that hire mathematicians? Specifically, mathematicians without any financial or statistical background. A list of summer internships would also be appreciated. I've checked out USAJOBS and NSA websites. What else is there? Relevant information about me: I...

It is often said that gravity is a curvature of space-time and not a force. But since gravity is caused by mass, there must be some way in which mass curves space-time. What are the equations for how mass affect space-time?

Homework Statement I have a rotating platform that spins as a mass attached to a wheel rotates the larger platform. The mass accelerates to the ground which spins the platform essentially. I am trying to calculate the moment of inertia of another mass which will be attached to the rotating...