Degrees Definition and 679 Threads

What does "spin degrees of freedom" mean? In the http://en.wikipedia.org/wiki/Spin_ice" , I find: I've searched on the web for "spin degrees of freedom" and gather from the comment that this has something to do with magnetism since it appears that the sentence defines a magnet as a...

Hello guys, I'm new here and just need a little advice. I was planning on a Engineering degree I finished my first year in it. I really love Math(all types) and Physics. But I also love being outside and physically moving etc. A job where you sit at a desk all day isn't for me. I get the...

Ive heard that at somewhere around 300 degrees Celsius (cant remember the exact number), you can't liquidise it anymore. Is this fact correct? Thanks in advance, fawk3s

I started out at a community college because I got a scholarship that would pay me $13,000 if I did. I was able to transfer for next fall, but not graduate from their because I needed some dumb requirements they had for PE and Political Science. I can get an associates in my intended major of...

Homework Statement Problem #199 http://img88.imageshack.us/img88/8008/scan0001vd.jpg Solution http://img21.imageshack.us/img21/2131/199hg.jpg Homework Equations Why is the angle from VB/A 20 degrees from the solution diagram? It would seem that I had to know that direction of VB/A...

A 70kg object is being pulled up a slope of 30 degrees such that the rope is parallel to the slope. v is constant. coefficient of friction = 0.3. what is the tension of the rope? I know without friction its, something like, T=mgsin(30)=70kg(9.8m/s^2sin(30))= 343N But i just don't no...

I'm an outsider with only casual reading of QM. I have read that with respect to spin, electrons must complete eight 90 degree turns to summersault back to their original state (while you and I require only four such turns). Has this been verified to be the case with entangled electrons as...

When I start University in the fall, I was wondering how it works if you'd like to be in multiple programs. Say I were to Major in physics with a minor in computer science or mathematics, does it cost extra money? Also, do you get charged money based on how many credits you take?? The tuition...

There is nothing particular quantum about this question but I'm posting it here because I think the quantum folks are likely more familiar with the topic. Hope that's ok. There are two ways of looking at field Lagrangian densities in relation to particle Lagrangians. (1) A particle (one...

How do i figure out the degrees of freedom of a certain object/gas for example oxygen gas i know it's 02 two oxygen molecules - the degrees of freedom is supposibly 5 but how do you figure that out? thanks

Homework Statement Find the acceleration of the object in the figure with mass 4 kg when it's applied a force of a)50N b)100N and which makes an angle of 37degrees.(sin 37=0.6,cos 37=0.8) [PLAIN]http://img97.imageshack.us/img97/5863/forceg.png Homework Equations F=maThe Attempt at a Solution...

I want to know if anyone has entered dental or law school aftr their Bachelor degrees of any engineering. I want to finish my engineering degrees because it is something that I have started but I am not sure if I want to stay in engineering for my entire life. And I think that if I am smart...

1. I don't understand coumpound angle formulae, for example sin(x+y), sin(x-y) etc. I'm supposed to solve using angles in the special triangles--so I use angles like 45, 30, 60, or those angles converted into radians--and add them to get the answer. For example: sin15 would be solved using...

Hello. I am intending to apply to some physics masters courses after my Natural Sciences BSc at UEA. I wonder if anyone could give me any advice as to the difficulty of the courses and my suitability for them? I have asked the admissions departments, but as one would expect, they are busy and...

In his latest paper below, he discusses the microscopic degrees of spacetime and entropy, and how the emergent thermodynamic features of spacetime do not require details of the microscopic degrees of freedom. Still, I wonder what sort of microscopic degrees of freedom of space time would be...

"physical" degrees of freedom Starting with the Lagrangian for EM, it looks like there are four degrees of freedom for the four-vector potential. But one term is not physical in that it can be expressed completely in terms of the other degrees of freedom (so it is not a freedom itself), and...

what is the degrees of freedom of helium gas ? shouldn't helium gas be diatomic ? If so , it will be 5 . i have problems differentiating monoatomic and diatomic . Though its obvious that mono is one atom and diatomic is 2 atoms . Is it possible to know whether its mono or diatomic from...

Homework Statement convert 38 degrees to radians. Give the exact answer in the form of pie. Homework Equations 180 degrees=pie The Attempt at a Solution not sure how to convert degrees to radians can anyone help??

Homework Statement I have estimated the standard deviation of the population of my samples from the standard deviations from each of the samples with the equation found below. And I am to construct a confidence interval for a contrast, thus I will need the number of degrees of freedom for which...

What are degrees of Freedom in the Lagrangian/Hamiltonian formulation of classical mechanics? I've been getting very confused trying to understand this concept. Would six degrees of freedom mean up, down, left, right, back & forward? I've seen it said that 3 degrees of freedom mean the...

My school has a regular 4 year physics major and another 4 year 'Honors' major. There is a more stringent selection of electives and I think it is more in depth in general. I assume it would be a good idea for me to do it but I'm just curious if the decision would have any bearing on grad school...

If the Earth's axis were tilted at 45 degrees, would the sun ever rise on Christmas day in Winnipeg, Manitoba Canada? What I think: I think you would be able to see the sun rise if you look 7 degrees to the south since Manitoba is at 52 degrees but I'm not sure..

In the Chi-square test, my textbook says that degrees of freedom are the number of independent variables minus one so df = n - 1 does this mean that that n is equal to the number of observed values from the equation aka the number of times I've added together the numbers? sum [(O-E)^2]/E Is...

My teacher told me that in columb gauge we have div A = 0 along with d/dt(Ao) = 0 where A is the vector potential and Ao is its time component , and time & space are not on equal footing , so these are two degrees of freedom and in lorenz gauge we have 4 dimensional divA = 0 where space & time...

Are the RMS-speed of gas particles related to degrees of freedom? I give up! I must consult help no matter how embarrassing it is! Any help is greeted with a big smile! :smile: Does the formula for root mean square speed of particles in a gas (below) apply for all particles...

Homework Statement A 8.0×10^-2 kg ice cube at 0.0 degrees C is dropped into a Styrofoam cup holding 0.35 kg of water at 12 degrees C. A) Find the final temperature of the system. Assume the cup and the surroundings can be ignored. B) Find the amount of ice (if any) remaining. C) Find...

Homework Statement Ok, I was able to figure out the difference in time for the michelson morley experiment and hence the fringe shift is B^2*L/wavelength. What i can't understand is why after shifting the experiment 90 degrees the fringe shift is supposed to be different. the one...

Hi there, I have been doing research on a lil private project of my own, and am looking for some help. Would it make sense to use nichrome wire to build a heating element that will heat to 80-100 degrees? It seems that nichrome is great for heating way way past that temperature. I want to...

Hi, I'm doing an essay on the Higgs boson and I'm confused about what the "four degrees of freedom" of the Higgs field are. I know that the W and Z bosons become massive by absorbing 3 of the degrees of freedom and the remaining one becomes the Higgs boson but I don't really understand what...

I have to answer a question which states: "a ship sails on a bearing of 070 degrees for 120 km. Draw a diagram to show this". Does this mean 70 degrees from the horizontal, so that I would measure 070 degrees by placing my protractor down flat and level in front of me?

Hello, I would like to be able to heat a nichrome wire with batteries (probably with a D batterie, but if it can be done with AA batteries, it's better, cause it's cheaper). I would like to be able to heat a nichrome wire of about 2 feat long at a temperature similar to the body...

http://sify.com/news/22-MA-degrees-5-PhDs-3-D-Lits-professor-learns-on-news-National-jm1mudaefid.html I thought one of my undergrad profs with 1 PhD and 3 MSc was too much, but this guy wants more! Talk about a life dedicated to academic learning.

I know this was posted before a long time ago, but it wasn't working for a while, and now it's back. Have some fun :biggrin: example: Shortest path from invariant subspace problem to paris hilton Invariant subspace problem Functional analysis 2004 February 17 Paris Hilton 4 clicks...

I am almost done with my mechanical engineering technologies bachelors...is it worth it to take an extra 3 classes to get my bachelors in manufacturing engineering bachelor also ?would employees take much consideration if I have both?

Homework Statement Two forces F1 and F2 are applied, F1 makes a 45 degree angle and F2 makes a 30 degree angle. The resultant R has a magnitude of 500 lbf and acts along the positive x-axis. Determine the magnitudes of F1 and F2. Homework Equations Pythagorean theorem?The Attempt at a...

Suppose X is a successful practicing lawyer. He already had a bachelor degree, and some graduate degrees under his belt. He realizes after watching startrek, he wants to be a research physicist in a university. Is he too late to go back to school? I suspect he needs to get in order...

Any suggestions? I do NOT want to do research; (1) because I don't think I'm good enough at this stuff to do exciting, original work in it, and (2) I don't love it enough to want to spend my entire day thinking about it or mulling over it. So I'd like to look for a job outside of academia. And...

Hello, I am an Engineering Physics major. Are there graduate engineering degrees offered for engineering physics? For example M.eng and D.eng? At which universities? Also, *What is the issue regarding offering graduate degrees with EP? Thanks, Jounce

How would I draw out the following problem: a bird watcher meanders through the woods, walking 0.30 km due east, 0.65 km due south, and 2.25 km in a direction 37.0° north of west?

convert 75 degrees to radian measure the answer is 5/12 pi i know that for converting degrees to radians you multiply the degrees by pi/180 degrees and when i do it i get the answer 1.3089... but how do you get the answer as above, in that form? i have changed the mode of my calculator...

Hello, 1)Why does the number of helicity states depend on space-time dimension ? Masselss graviton in 4 dimensional space has 2 helicity states ( 2 degrees of freedom). In 5 dimensional space it has (still massless in 5 D) 5 helicity states (5 degrees of freedom) ... In 6 dimesional...

Homework Statement Why would vibrational and rotational degrees of freedom affect the heat capacity ratio more for N2 and CO2 than He or Ar? Would this occur at room temperatures? Homework Equations d.o.f.: 3N vibrational d.o.f., linear molecule: 3N - 5 nonlinear: 3N - 6 The...

Homework Statement Path A is 6.0 km long heading 60.0° north of east. Path B is 6.0 km long in a direction due east. Path C is 3.0 km long heading 315° counterclockwise from east. (a) Graphically add the hiker's displacements in the order A, B, C. Magnitude of displacement: _________...

Bit of a noob question, I've measured the phase difference between sine waves of V(in) and V(out) using an oscilloscope to be 22.0 micro-seconds at a frequency of 10.4 kHz. How would I find the phase difference in degrees? Thanks.

Or mechatronics as it may be known Do they courses provide better employment oppotunities than mechanical and electrical engineering seperately? I ask because Its a long course (5 year masters) and is a big commitment for an undergrad masters Also does anyone know any good UK or EU...

Homework Statement A rocket is launched at an angle of 53 degrees above the horizontal with an initial speed of 100 m/s. The rocket moves for 3.00s along its initial line of motion with an acceleration of 30.0 meters per second squared. At this time, its egines fail and the rocket proceeds to...

Hello, consider this: http://www.alice-dsl.net/l.hansen/overdetermination.png See this image? Every point in space can be reached for the mass by the springs motion plus the springs rotation and then there's the pendulums rotation additionally. Not solvable analytically but numerically...

This is a killer July for us here in Oregon. Normally we only have 5 days in July over 90 degrees [Portland]. This month it will be more like 12, with 4 or 5 days over 100. I left California to get away from this nonsense! There ought to be a law! Seriously though, while we Oregonians are...

Why is the angle between products in non head on, perfectly elastic collisions always 90 degrees?

#degrees of polarization of a spin 1 or 2 particle On page 32 of Quantum Field Theory by A. Zee, he expects you to remember the concept of polarization, specifically how to extract the number of degrees of polarization of a spin 1 or 2 particle. As I seem to remember from EM class...