Degrees Definition and 656 Threads

I just want to know if there is now a way to solve fractions like which had a variables that has a degree more than 2 in its denominator. I know that denominators having degrees of 2 could be solved using (Ax + B)/(x2+a). But how about denominators like (x3+a) and so on?

how to turn my robot 90 degrees ?? firstly I am an arabian so I wish you can talk an easy accent ^^ I will try to tell you every thing about my project in english am working on robot which makes a square but I couldn't turn it 90 degrees exactly my robot has two motors dc...

Homework Statement Two cars collide at right angle in the intersection of two icy roads. Car A has a mass of 1000 kg and car B 1400 kg. The cars become entangled and moved off together with a common velocity v’ in the direction indicated in figure QB4. If car A was traveling 10 m/s at the...

I'm currently in the 12th Grade and the only course in Physics that the college that I am aiming for has is an integrated MSc degree. So in 5 years time, I will be walking out with an MSc degree in my hands with no intermediate BSc degree. What I wanted to know is whether I will be able to apply...

I'm not quite sure I get the idea of a degree of freedom for a system. First of all: Is there freedom in characterizing the DOF for a system - i.e. will specifying the DOF for a system relative to any coordinate system always be the same? Next let me do an example: If we have 2 particles free...

i wonder how can a non linear triatomic gas molecule have 6 degrees of freedom.As per me three of those will come from translational motion,two from rotational and two from vibrational modes.so it should be 7. could you please tell me where am i going wrong. note:the triatomic gas molecule has...

I am interested in a car's transition from zero cornering force (just before entering a corner) to maximum cornering force (somewhere in the corner). In particular, I would like to know how far into the corner it takes (in degrees) for this transition to happen. Assume a car is capable of...

Is it possible to "pump" a swing 360 degrees? Homework Statement Is it possible to "pump" a swing so that it turns in a complete circle? Assume if you wish that the seat of the swing is connected to its support by rigid rod rather than a rope or chain. Homework Equations Angular momentum...

Force With Angles! Homework Statement A child pulls a wagon with a force of 59 N by a handle making an angle of 20 degrees with the horizontal. If the wagon has a mass of 5.2 kg, to the nearest hundredth of a m/s2 what is the acceleration of the wagon? Homework Equations ƩF=ma The...

Homework Statement Find the equation of the line through the point (-5,-4,2) that intersects the line at r = (7,-13,8) +t(1,2,-2) at 90 degrees. Homework Equations I guess that using the dot product for the direction vector of the line needed, (x,y,z) , with the direction of the given...

I'm planning to major in physics at my university. However, this will be a second degree. My first was a 3 year biology degree 7 years ago. I'm interested in the job prospects of the various physics degrees and since my university is a small undergraduate school, they offer multiple...

I'm looking for a conceptual explanation of a formula in Quantum Mechanics Demystified introduction. They introduce you to the theoretical black body radiation experiment, where demonstrated how a classical approach leads to the ultraviolet catastrophe. In the explanation they have the...

Homework Statement On a very muddy football field, a 110 kg linebacker tackles an 85 kg halfback. Immediately before the collision, the linebacker is slipping with a velocity of 8.8 m/s north and the halfback is sliding with a velocity of 7.4 m/s east. A.) What is the magnitude of the...

Hello, I am in my first year in college and my major is COMPUTER ENGINEERING. However I just learned that computer engineering is supposed to be about hardware stuff, and I love programming and coding, so that means the software stuff. My dream job would be to work at Apple, Microsoft or Google...

Homework Statement If x is measured in radians, then the derivative of Sin[x] with respect to x is Cos[x]. Use the formula Sin [x degrees] = Sin [2π/360 x radians] to calculate the derivative of Sin [x degrees] with respect to x. Why does the resulting formula make calculus difficult...

Homework Statement Describe how to rotate the plane of polarization of a plane-polarized beam of light by $90^\circ$ and produce only a 10 percent loss in intensity using "perfect" polarizers. The solution says to use 24 polarizers, with each at an angle of $3.75^\circ$ with the next...

Having some trouble following my notes in QFT. Any help greatly appreciated. We have the Klein Gordon equation for a real scalar field \phi\left(\overline{x},t\right); \partial_{\mu}\partial^{\mu}\phi + m^{2}\phi = 0. To exhibit the coordinates in which the degrees of freedom decouple...

Let's say you have 2 identical springs Let's say length = 1m Spring constant = 0.5 You attach each spring to the ceiling and a mass. The springs make a 30 degree angle with the ceiling. Basically the system forms a triangle... Is it OK to say that the effective spring constant of the...

Bit of background about me. It's a bit long, but I really need advice. I am a 24 year old living in an economically hard hit area of the country. I have dual degrees in psychology and english, and am currently working in a job that doesn't require my degrees. Originally, I went to school...

Homework Statement A mass of 100g is supported by two identical springs of negligible mass having spring constants k= 50 dynes/cm. In the equilibrium position, the springs make an angle of 30 degree with the horizontal and are 100 cm in length. If the mass, m, is pulled down a distance of...

I am wrighting a short introduction to dynamical systems, and I can't seem to understand when are we allowed to talk about the "degrees of freedom" of a dynamical system. A system of one degree of freedom can be described by a 2nd order ordinary differential equation of the form...

Hi all! I am currently trying to choose a degree to conjoint with my Engineering Degree. I was hoping I could call upon your infinite wisdom to assist me. My options are as follows: Commerce Science Business Management Information Technology No Conjoint I'm leaning on the side of...

They say that the two degrees of freedom of a photon are its two helicity states. Why are the energy or the momentum of a photon not degrees of freedom of a photon? They can differ and they are Lorentz invariant. thanks

Hello all! I am going to begin the last year of my Bachelor's course in physics in about a month and it's about time to start searching for some Master's degree opportunities. I decided I might just as well try my luck at Cambridge but the problem (one of the many problems actually :P) is that...

What are the most lucrative college degrees? Does having an MBA from Harvard guarantee that you will be a top executive of a fortune 500 company making almost 7-figures per year? Or a CEO making millions? Does engineering pay more than medicine? What about law? Apparently the only...

Homework Statement 62. In physics, it is important to use mathematical approximations. (a) Demonstrate that for small angles (<20°) tan a ~ sin a ~ a = (Pia'/180 degrees) where a is in radians and a' is in degrees. (b) Use a calculator to find the largest angle for which tan a may...

Hi Everyone, I am looking for some help on this question In Triangle EFG find the value of f, if e=7.3cm g=8.7cm and angle E= 73 degrees This question is from the lesson "Cosine Law" and from what I understand you can use the cosine law if you have all three side lengths or 2 sides and...

Homework Statement Find the E field of a parallel plate capacitor tilted at 45 degrees from vertical and moving at a speed v. each plate has plus or minus \sigma_0 for charge density. The Attempt at a Solution Well the E field in rest frame would be E= \frac{\sigma_0}{\epsilon_0}...

What happens at -273 oC? (everything under 1atm) I know about the cooling curve but just wondering what would happen to substances at absolute zero- does the temperature keep reducing/get harder? Also, how do gases stay in gaseous form in outer space? Many thanks in advance! :)

I know that water forms different kinds of crystals in different kind of temperatures but is there any temperature where water is solid but does not form crystals for example just above absolute zero degrees, what kind of crystals does it form?

In lecture 2 of his series on Classical Physics, Prof. Balakrishnan asks how many degrees of freedom there are in a system consisting of a falling piece of chalk. Looking at my notes, I'm not sure I understand the concept. Is the answer 6 (3 of position, 3 of orientation), or 12 (3 of position...

Hi, I'm wondering if there is such a study field which has to do with optics. meaning I've always wanted to work with stuff that looks into space and brings back images. Is this astronomy? or is there another thing. I'm really confused about everything since for now I'm just going to a community...

Hey, I was wondering what you can do with a university degree in physics or mathematics. I know one thing you can do with a physics degree is get a masters degree in astronomy, what are other things you can do, as well as things you can do with a mathematics degree? I really enjoy maths and...

This is from an advanced physics book, but is one of the first problems in the first chapter and only deals with vectors. The reported answer and mine do not coincide. For part (d) I get 35.26 degrees, the reported answer is 90 degrees. (Note: all variables are vectors) Homework Statement...

Homework Statement I'm working through a Law of Sines problem. And along the way, I have discovered that sin(C) = .9796.s I had thought from my trig days that I could find the angle whose sine is .9796 by finding the arcsin of.9796. But when I load this into my TI89, all it does is...

Haelfix pointed out the paper http://arxiv.org/abs/1105.4733" , and Witten 2007 (discussed in that thread) expresses doubt that 4D gravity could be exactly solved, precisely because it has local excitations. And yet here Maloney et al have done it in 3 dimensions. Can something about their...

Hi my name is Marco, I live in South Africa and currently studying a Bachelors degree in Mechanical Engineering. I first decided on mechanical because I enjoyed cars and learning how machines work. But after 2 years into the degree, I have started to lean more towards changing to industrial...

What are "education leadership" degrees? At this years commencement, our University graduated something like 40 "Educational Leadership" doctoral students. Yesterday I was talking to my adviser and the graduation had come up and we were talking about it. Another professor had come by and...

Firstly i need to heat a wire to around 20 degrees or over using a low power battery which could last up to 24hours. what kind of wire is easiest to heat up? would AA battery's work? what would be a long lasting battery source? can it be done? please help me! thanks

I just want to know if there is any theorem that can forbid certain degrees of freedom in the Theory of Everything. Supposed quantum mechanics and generel Relativity are just classical limits of a third theory and the theory of everything. Is it possible for applications of this Theory of...

Hey everyone, was looking for some input please! I just finished my Associates in Mechanical Engineering Technology and am looking to move on to my BS degree. I got accepted to Rochester Institute of Technology and Temple University. RIT has the traditional MET degree, while Temple has a BSET...

One common explanation of the concept of D.F. is this: Suppose you have n numbers (a, b, c,...) that make up a sample of a population. You want to estimate the variance of the population with the sample variance. But the sample mean m is being calculated from these numbers, so when...

In the UK, following the Bologna process, any undergrad degree taking 4 years, assuming sufficient amount of credits is obtained, one is awarded a Masters degree. A 3 year course results in a bachelors. Why is it that in the US, one is awarded with BS after 4 years of study? Is it because of the...

Trig right triangle solving question How do you know if you should pick tan, cot, etc for the last part? if b = 2 , A =40 , find a,c, and B I found all of them except for c , how do you get c There's a part almost at the end that goes like tan40 degrees = a/2 and Cos 40 degrees = 2/c Why do you...

Question #1: Can you have current in a wire without voltage? I was having a discussion with someone today and I said that it's impossible to have current with no voltage... He said, "oh yeah, well when I short this battery out, you will measure zero volts across it, but you've got all kinds...

Sorry this isn't for a particular question, just wondering if anyone knows how to determine degree of static indeterminacy (or degrees of freedom) in an arbritary frame? Any help greatlly appreciated thanks.

I know that 65° = pi/180 = 13pi / 36. But when I divide 65 / 180° I get. 3261. How would I convert this into 13pi/36 ? I know I am forgetting the basics..

Hi, I'm a total layperson, haven't taken a physics class since AP in high school. Trying to figure some stuff out for some writing I'm doing (poetry, bizarrely enough). So excuse if this question is super-simple or if the terms of the question are nonsensical somehow. "Degree of freedom" in...

Greetings, Are there degrees of quantum entanglement? After entangled particles interact with others particles do they continue to be entangled to some degree? Becoming less entangled the more interactions that occur? So that there is complex network of entanglements? If so, could it be...

Hey there, I'm still at undergraduate level studying Physics right now, but looking ahead at the possibility of pursuing a PhD I'm slightly worried about what some people are saying. I'm currently studying at quite a good university, but seeing as I wanted to do a year abroad to learn a...