Experience Definition and 451 Threads

Homework Statement F=950 T=0.12 S Homework Equations For impulse I should use the equation J=FT the problem with this is that it yields a seemingly incorrect answer The Attempt at a Solution J=950*0.12=114

Hello, I am currently a Junior at an average state university with a not particularly well known math department. I'm pretty set on pursuing a Phd in math (my interests lie primarily in numerical analysis and PDE's), and would like advice on which programs would be realistic to apply to...

http://www.ibnlive.com/news/tech/experience-the-milky-way-through-the-biggest-astronomical-image-ever-with-46-billion-pixels-1155060.html See the Milky Way in one massive 194GB image: http://astro.vm.rub.de/

I bought the celestron firstscope about 4 to 5 months ago.in the beginning I was pretty excited and enthusiastic but as time wore on,I found myself away from the scope.now I want to restart astronomy but I would like some tips to make it more fun and interesting so that my scope don't end up...

hi everyone, so i am an undergrad who is graduating with a physics degree in less than two months. i dropped the ball by not being more active in my department's colloquia / student society / etc. and have not been able to get any research experience outside of lab courses (which don't count...

I thought I would let you know my experience. I down loaded Windows 10 a couple of days ago. It took about two hours and, frankly, I didn't see any advantage. Perhaps I don't do the kinds of things it was intended for- but I don't know what those might be! It took a while to figure out that...

Preface: I have a B.S. in Applied Physics and minors in Biomedical Engineering and Mathematics. At this point my intention is to go into industry rather then academia. The project I am working on now, and might be able to turn into a M.S. thesis, is in bioinformatics, more specifically using...

Hello all, For any of you current or ex grad students out there in physics, what was your overall experience like in graduate school? Extremely stressful, working 80 hours a week for 6 years and hating life or more along the lines of 40-50 hours a week and enjoying life while being on the...

Hey guys & gals, a long time lurker here. For a variety of reasons I have failed to secure a PhD position that I wanted this year after finishing my MPhys degree in physics, so I decided to take a year away from studying, regroup, work towards publishing a paper and then come back with full...

I'm taking the PGRE in about 3 months and haven't really began studying. There's loads of study tips out there already, but I'm looking for any first hand experience anyone has had with taking/studying for the PGRE. I've found that no matter what tips you can find, first hand experience is...

Homework Statement I'm trying to show that ##\Sigma_j(\vec a_j \cdot \vec B)=\vec B\cdot\Sigma_j(\vec a_j)## (I need this to be true to derive some angular momentum properties.) 2. The attempt at a solution Let's say that in some coordinate system we can express the vectors as ##\vec...

Hi everyone... I'm a communication system engineering student and in my university we use studying Java. Now, for this summer, when I ll have free time, I was thinking about doing some practice with programming and maybe studying a new language, such C++( it s still a widesprrad language and I...

I've been reading many of these forums regarding students with low GPAs, or low GRE scores, etc., but I am in a slightly different situation. I am about to head into my senior year of undergrad and will receive a physics BS and an applied math BS. My GPA isn't much better than a 3.0, which it...

Fall internships for undergraduates? I have myself in quite the pickle. I'm entering my senior year of college pursuing a BS in Physics and a minor in Math. I go to a small university near LA. I was just offered a paid internship across the country by NASA for this upcoming fall. Of course I...

So here is the gist. I just completed my 3rd year of a 4 year Phys and Astro Masters at the University of Exeter, and for the second year in a row, me and all my course mates were passed over for internships because we lack experience (which we can't get because no one will pick us for...

Hi all again. I had received very good advice from my previous posts on PhysicsForum. Those advices certainly have helped me to navigate through all the confusions I have for my future career path. So I really appreciate the help from all of you. As I become more informed, I have more specific...

Is anyone enrolled in the TEAP program in Australia? Are registrar positions difficult to obtain, or does the graduate school match you with one? How bad is the ‘junior MP bottleneck’ down under?

Of the few occasions I've seen Airfoil Lift described to general audience (on documentaries), it has focused on the top-side curve of the Airfoil causing air on the topside to move faster than the bottom-side. This is said to reduce air pressure on the topside and result in lift. If a wave is...

I've often heard the speed of light and time dilation related from the standpoint of a particle as being in constant motion at the speed of light with the vector rotated slightly off the temporal dimension and toward any combination of the three spatial dimensions. Does this mean photons...

Is it correct to say that the energy in resistance and reactance components of a LR or RC series A.C. circuit are the same thing as the momentum energy and rest energy of a moving mass in special relativity?

Hello, I've decided that I want to learn physics coding and such. But I have absolutely no coding experience whatsoever, what should I learn? I was told I should learn Maple/Matlab/Mathematica, do I start straight with these? If so, which one should I start with? Or should I start with something...

Hello guys, I once again come to ask of a concern that has been worrying me for some time. Last semester as I took much lighter coursework, I had the luxury of having a lot of time to figure problems out, and only consumed a can of energy drink before tests for the assurance. I felt that I was...

I have just finished my second year of my undergrad in biomedical physics, and I am just wondering what would be a good approach to go about getting some work experience in physics (maybe something similar to a TA, but obviously not working towards a master's in physics..yet). I feel as though...

So I am looking for advice from anyone really, especially ones from experienced teaching experience. I've been tutoring this past year, part time. Most of my students are very happy with me and we have a great tutor/student relationship. There was one student I met with only 4 times. Twice for...

Hello all, just a quick question. In terms of gaining research experience for applying to physics grad school, does the research experience necessarily have to be in a lab? Would only independent research (but supervised) be worse than actually lab experience? Thanks for your input, Brian

Hey all. I'll be transferring to a four year university in the fall. Once I'm into wherever I go, I'll need to start looking for money in order to minimize the debt I accrue over my undergrad. I was wondering what experience any of you have in looking for support. I'm going to be getting a fair...

How close do you have to be from a black hole to experience noticeable time dilation. I always believed you will not experience noticeable dilation until you are at or in the event horizon is this correct? Also does rotation/spin of mass such as a planet decrease it's inherent gravitational...

Hey there, I'm a junior in undergrad and I'll be applying to grad school next fall. I have a 4.0 and very good letters of recommendation, but other than a sub-par GRE score, my main dilemma is research experience. Here is the research experience I have: 3 years, 3 papers in AMO/QFT (pair...

An old concept previously used by Socrates and currently by Montessori schools that thinking can lead to knowledge is better than trying to provide knowledge to develop thinking is being reintroduced into our educational system. This educational model has been expedited by the internet by...

Homework Statement I had a few questions about the npn BJT with regards to designing a few circuits. The questions and my attempts are below. For the calculations, assume ##\beta = 140## and ##V_{BE} = 0.7V## for npn active mode. 1. Fixed bias circuit: Design the resistor values required to...

Hey, I've been trying to figure out why a protons in identical environments will not undergo spin-spin splitting with one another. From what I understand splitting of a signal for a proton is due to the nucleus of another nearby either opposing the external magnetic field or acting in the same...

Having not been set up with a station for quite a few years I am thinking of setting up an end fed antenna for HF. It seems the only way I will enjoy a little 'hamming' again is to start out simple and quick. Trying to avoid clutter in the middle of the yard. I have enough tower sections get...

I am wondering if anyone has used AD8333 to demodulate a square wave input (Not the LO, but the RF input).

When I woke up in bed last night, I was turned around with my head facing the footboard, which was exactly opposite to how I was positioned when I fell asleep. I have absolutely no memory/recollection of having turned the other way in my bed, so I must have done this in my sleep. I even moved...

Just finished freshmen year of university, and I would really like to have some research experience at one point before graduation. Well, I should not have much problem getting into my school's research lab since professors here are always asking us to consider joining their lab. And I would...

Greetings, fellow PFers. I'll begin by saying that I'm looking for a few internships for people with research experience. I'm applying to a few REUs just in case, however I hear that they are geared more for people with few research opportunities at their home university, and that isn't the...

I don't know...it must be that I'm too much of a free spirit to work for someone else. I'm thinking, after I graduate with my mathematics BS, I would like to get a masters. After that, maybe I'll start my own consulting firm. Of course, I will get volunteer/unpaid experience along the way...

I need to something to relate the vibrations (Grms) to everyday life. How can I explain how much 25Grms is. Is it similar to vibrations you experience during a take off or is it similar to vibrations you feel during a Mag 4 Earth quake?

Hello. I am in an undergraduate math major in an introductory graduate class on integration theory and it has truly been an unpleasant experience. I feel the instructor(who is teaching it for the first time) is pretty much completely disconnected from the students in his assignments and...

Sorry this is a silly question but I'm an amateur and simple. Can someone explain Gravity-assist and the Penrose process to me? I'm obviously missing something basic but I'm confused. Technically, could a photon traveling at c experience a gravity assist (or something like the Penrose process)...

Hey. This question is kinda specific, so I will not be surprised if it is not answered to at all, but any input is appreciated. I'm currently struggling with the possibility of studying Physics as an undergraduate here, at Brazil (Free, top 100 only Physics university, but the technology and...

I'm analyzing data from XRD on a FeSeTe sample, and can't figure out how to match the calculated intensities with the observed ones. I'm having a hard time with this program, can someone help me?

Hello everyone, I am new here and wondering if anyone could help me. I am currently a year 12 student doing Physics, Chemistry, Mathematics, Further Maths and Psychology at a Sixth form in London. I have plans to study Astronomy at University. I would like to get a work experience placement...

Hey everyone, hopefully this is the right place to post this. I'm going into an undergraduate program in January, and I've been leaning towards the interdisciplinary program of systems engineering. I was wondering if anybody has had experience in this field? I would imagine it would be a...

I need to know a realistic minimum biaxial tension per unit length - in N/m - for the surface of a membrane which is 27.4 mm square - with surface density 0.0912 kg/m^2 - so that it could be vertical and remain tense so that mode shapes due incoming acoustic energy would remain intact (if the...

Hey guys! Let me throw in who I am before I introduce my question. I finished my year of graduate school last May, figured out an advisor and a field (something related with Brownian motion on manifolds), and I'm overall happy with it all. No plans of dropping out, I enjoy the company of my...

Hi, I have been looking into Tesla's work and his self claimed "non-Hertzian" waves, some called electrostatic or dieletric pressures waves or rays eletric induction (magnetic and dielectric). I am also interestted in negative resistance systems, transiet phenomenon (pulse wave) and...

In reading some stuff on this forum and about general math education in the US at least, I'm curious as to others' experience with math and when it "got hard" for them. People here I assume are mathphiles and love math. They've done well, math came easy, etc. I include myself in this category...

Hi all. I will be graduating next year and wanted some of your input. I will receive a B.S. In applied physics and mathematics from University of Miami, hopefully summa cum laude (>3.9 GPA). I also have coursework in chemistry (through organic 2 and physical chemistry 2) and biology (through...

So, I've been in community college for a year now and my original plan was to get out of here in 2 years as fast as I could. Tonight, I just met with a part time professor here and I have the opportunity to take part in some research with him and another student (or 2). This honestly sounds too...