Degrees Definition and 656 Threads

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??

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...

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..

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...

I am making a bonded magnet and have the need to maintain a temperature of around 70 C in a magnetic powder compressed in a stainless steel mold for a period of about 2 hours, before cooling rapidly to room temperature. i was thinking about using some sort of infra red heating, but would like to...

Since I first leaned of the concept of social networks it has fascinated me but I never really studied the topic. It seems to me a huge topic but is not widely studied compared to other areas of mathematics. What better way to study such things as the spread of information, political views...

I am currently a law student and intend to eventually practice ‘patent’ law, however law students are not permitted to sit for the patent law bar exam unless they have an academic background in one of the core sciences. There are specific degrees (or classes) which fulfill this prerequisite. A...

Homework Statement A particle slides along a wire which is rotating at a constant angular velocity w. In polar coordinates the equation of constraint is : theta' - w = 0 OR theta - wt = 0. * What is the equation of constraint in cartesian coordinates? Homework Equations The...

What degrees do I need to be a warfare physicist. I know I need a Ph.D. in physics. What else do you need? Do need anything in Chemistry? Do I need something in math too? Please give all the details you can think of about my career. :smile:

Homework Statement "Forces of 10.6 N north, 19.1 N east, and 16.0 N south are simultaneously applied to a 3.62 kg mass as it rests on an air table. What's the direction of acceleration in degrees (Take east to be 0 degrees and counterclockwise to be positive.) " Using components, I already...

I seek to construct an apparatus capable of moving a steel plate against gravity in 200 milliseconds. The plate is roughly the same size and shape as the hatch on a submarine: mass = 40 kg; dimension: 0.3 meter diameter--> = radius in calculations below; angle of rotation: 90...

"Rotational degrees of freedom"...I don't get it. How can you determine how many rotational degrees of freedom an object or system has? For example, how many rotational degrees of freedom does a diatomic molecule have, and why? I've never been good at figuring this out.

I'm looking to see if a flexible beam I am using right now can be flexed further, currently it goes to around 25 degrees and I want to see if I can bend it to around 50 degrees without permanent deformation. Looking to do a back of the envelope calc to check this, what equation should I use, and...

when we talk about degrees of freedom in atoms and molecules should time be a degree of freedom.

Hello! I am new here, this is basically my first post. I am an 18 year old from India, just finished high school. It is my wish to pursue a career in physics, going into research and/or academics. However I am somewhat apprehensive about the level of science education one gets in Indian...

Homework Statement show sin(1), in degrees, is algebraic over the rationals The Attempt at a Solution I want to find the minimal polynomial that has root sin(pi/180). Ya that's all I got.

The Einstein field equations (EFE) in 4 dimensions have 10 degrees of freedom; The Riemannian curvature tensor in 4 dimensions has 20. If I understood this correctly, one can split up the curvature tensor and describe the remaining degrees of freedom by its traceless part, which is called the...

After 5 loyal years, my Canon Digital IXUS 400 has given in... i can take pictures, but there are red stripes all over them. Maybe it is something fixable, but I've been meaning to replace the thing anyway. So, i put it in a plastic sealed bag in the freezer, which the thermometer indicates...

Hi, Could you pls advise me why in on-shell case graviton has two degrees of freedom? and in general how do I calculate bosonic or fermionic degrees of freedom of any particle? I was reading some books about supersummetry and stuck when they said gravitopn has two degrees of freedom and...

I was just wondering how college degrees work. Let's say I got a degree in general physics but also have knowledge of electrical engineering. If I wanted to obtain a degree in electrical engineering on top of a degree in general physics would I have to do the whole 4 year electrical engineering...

I wanted to ask which would provide the largest total BTU cooling regular ice from water or dry ice to reach a temperature of 25 degrees C? 1 lb of Ice would start at -3 degrees C to 25 degrees C at sea level = total BTU 1 lb of Dry ice would start at -80 degrees C to 25 degrees C at sea...