Applications Definition and 662 Threads

I was wondering what different method's there are for compensating for large temperature swings in a fluxgate magnetometer and obtain a consistent and repeatable value. I’m trying to obtain this without using a temperature sensor; I would like to use analog or digital components to do this.

I'm always amazed by studies involving super bacteria. I'd love to hear about all the research you have come across involving bacteria. Here is a recent one I just found: Superman-strength bacteria produce gold from gold chloride...

Homework Statement Let f be q function defined from [a,b] to [a,b] such that for every (x,t) in [a,b]^2: l f(x)-f(t) l < l x-t l 1- prove that f is continuous on [a;b] 2-prove that f accepts a steadfast point in [a,b] The Attempt at a Solution Should i try to use the definition of a limit...

(chemistry major applying for grad school) I would consider myself a very good candidate, but I'm pretty biased. I won't run down everything, but I feel like I am on the very high end of all the things they look for in an applicant. My trouble is in figuring out where to apply, and how many...

I just did a clean install of Windows 7 64 bit on my system. unfortunately I misplaced the box of CDs with most of my applications. I still have the hard drive where all the apps are installed. is it possible to extract the entire application from the old HD and install it on the new one? I have...

It's hard to convince people that they should hear and/or learn about the 4th dimension, string theory, and all of the like without giving them real world examples as to why these are all important. I've been trying to find a way to incorporate the 4th dimension in particular into a short...

Hi all. I'm studying from Leon's Linear Algebra with Applications. I'm wondering if one of his examples has an error. In Application 2, he's talking about searching databases. He says we should imagine a database of m documents and n possible search words. Then he says that this can be put...

I was just wondering what are some applications of prime numbers other than cryptography? Also i heard that there is no certain *equation or prediction of Prime numbers? For example, there is no way to explain prime numbers with an equation. What happens if one was able to find one...

Hi, I'm a new user of this forum and i wanted to know how i can use calculus and interpolation in my projects. I'm a student in engineering and i usually do home made electronics and computer programming projects, i would like to include calculus to my projects and understand the practical side...

Hey everybody, Im planning on applying to Nuclear Engineering PhD programs next year and I was wondering if it is reasonable to ask my recommendation-writers to send the letters to 5 different schools? Do most people just apply to one grad school? Seeing as they all require three letters of...

Hello Everyone, I'm brand new to the forum as a poster, although I have been quietly reading the very interesting discussions going on here for a while! I'm hoping to slowly emerge from the shadows and start posting myself. Whilst I am by no means an expert in Physics, I do love the subject...

Homework Statement A meteor of mass .25 kg is falling vertically through Earth's atmosphere with an acceleration of 9.2 m/s. In addition to gravity, a vertical retarding force (due to the frictional drag of the atmosphere) acts on the meteor. What is the magnitude of this retarding force...

Are there any real life applications of the rank of a matrix? It need to have a real impact which motivates students why they should learn about rank.

Are there any real life applications of the rank of a matrix? It need to have a real impact which motivates students why they should learn about rank.

if f(x) is twice differentiable function such that f(a)=0; f(b)=2; f(c)=-1; f(d)=2; f(e)=0, where a<b<c<d<e; then minimum number of zeroes of g(x) = (f'(x))2+f''(x)f(x) in the interval [a,e] is ... All I can figure out is that at the least, it is a 4-degree polynomial with roots a, (b,c) (a...

Hi All, I have a very basic question on integrating two applications of different technologies. Let's take a web and a mainframe application, and we all know this could be integrated through 'web services'. But is it possible to integrate these two applications without using webservices...

While reading organic chemistry, the textbook said that resonance is something which is found everywhere in chemistry. It applies everywhere in chemistry and so on. However so far the only application I've found of resonance is that the more resonance structures a certain molecule has, the more...

Hi guys, I am new to the forum. I have done a bit of reading on functional analysis lately.So I was wondering whether Functional Analysis can be related to physics in any way and what are the applications of that in physics?

Completion of Metric Space Proof from "Intro. to Func. Analysis w/ Applications" Homework Statement I have started studying Functional Analysis following "Introduction to Functional Analysis with Applications". In chapter 1-6 there is the following proof For any metric space X, there is...

So I just completed the graduation requirements for a degree in Biochemistry and Molecular Biology and will be receiving my Bachelor of Science in August. I started looking for jobs about a month ago. I sent about 150 applications, but only got 3 declines and 1 interview; didn't get the job...

So I'm starting to learn how to program and I just learned how these operators work (difference between pre and post, etc.). However, I have a question, what real application can these operators have in actual software development? I mean, if for instance I have a variable with an X value...

Homework Statement The Attempt at a Solution I don't understand where that 2 comes from in the denominator in cos nπ/2

Hey everyone, I'm currently taking a mathematics course in set theory at my university as a general elective. I was wondering does set theory have any practical applications in engineering?

What use is the inverse matrix? I would not use it to solve linear systems but there must be some concrete or real life applications where it is used.

Homework Statement A lamina occupies the region inside the circle x2+y2=2y but outside the circle x2+y2=1. Find the center of mass if the density at any point is inversely proportional to its distance from the origin. Here is the solution...

Hey everybody, I have to give a talk in our seminar on invariant theory of Lie Groups. And I'm now looking for easy applications of invariant theory to quantum physics. I want to present them to motivate the discussion. I would be lucky if someone of you has an idea where I can found...

So my high school has 2 math courses functions and functions and applications. What's the difference and which is better off for me to take. I want to take calculus in grade 12 and it has a requirement of functions. Will functions and applications count for this. Help is much apeciated Also...

1. A 1000 L tank is draining such that the volume V of water remaining in the tank after t minutes is v=1000(1-t/60)2. Find the rate at which the water is flowing out of the tank after 10 min. Calculate dV/dt using chain rule u = 1 - t/60: u = 1 - t/60 ==> du/dt = -1/60 V = 1000u^2 ==> dV/du =...

I am reading Etgen's Calculus: One and Several Variables section on Green's theorem. I was wondering if there is any direct application of this concept to physics or is it only used to calculate areas?

I want buy a book to learn RF circuit design(I have got a project to do next year and I wanted to start preliminary preparation now). Could anyone help me to figure out which one is better of the two - Engineering Electromagnetics by Hayt or Electromagnetics with Applications by Kraus. Thanks

Homework Statement find the area between the curves f(x)=x^3+4 and g(x)=x^2-4x-2 ok so i am really stuck here my teacher has just given me this question for homework and i have no idea how to do it. I usually don't struggle with maths and seeing as i am with this, i am stressing out...

Hi, for a presentation I am requested to give some examples of the Real world applications of Parametric Differentiation. Now i know its to do with a differentiation of 3 variables that are connected, but for the love of god i cannot think of any examples of its practical uses. any help...

A sector of a circle, let's say AOB with circle centre O and radius 5cm has a chord subtended from A to B. This chord forms a triangle with centre 0. Angle 0 isθradians, and the area of triangle A0B is 8cm2. Given that angle AOB is obtuse, findθ. I worked out Sin-1(0.64)= 0.694, but this is...

Hello! I've been tackling the question 'Express sin3x+sinx as a product and hence solve 1/2(sin3x+sinx)=sin2x ; x∈R' but I'm stumped - I'm not sure whether I've even approached it correctly. This is what I did: sin(3x+x)=sin3x.cosx+sinx.cos3x inserting this into the second equation...

I read in my metric spaces book that a separable space is that which has a countable, dense subset. This definition has no intuitive meaning to me. I'm able to show if a space is dense or not, and I think I can show a space is countable. But, I'm missing the "so what?!" I would like to...

Consider a top spinning. From experience we know that it's harder to tip over if it's spinning. I believe that is due to precession but I'm not sure why. I can see when I draw torque and angular momentum vectors, that the angular momentum vector just gets "shifted" a little to the right (or...

I understand the importance of letters of recommendation for grad school applications. My question is: ideally, how much should my recommender know about me? I ask this because I study in a top, big research school in which the interaction between the undergrad researcher and the PI is very...

Hello, I'm a physics undergrad who knows a little bit about topology (some point set, homotopy theory, and covering spaces), and I was wondering if people could describe some instances in which topology is useful for studying phenomena in physics (such as in condensed matter theory, or in...

Homework Statement Find and describe the path y = y(x) for which the integral \int\sqrt{x}\sqrt{1+y^{' 2}}dx (the integral goes from x1 to x2... wasn't sure how to put that in. sorry) is stationary. Homework Equations \frac{\partial f}{\partial y} - \frac{d}{dx}\frac{\partial...

Hello! I have done some research on transistors because I want to increase my current via increasing the voltage of a circuit in order to offset the increased load. As far as I understand, transistors can amplify (increase) voltage and current, as well as rectify (does this mean it can convert...

other than the physics (work) what are the applications of line integral? particularly does it have any use in finance or economics?

Homework Statement Given the equation mx''+cx=cAsin(Ωt) with the initial conditions x(0)=0 and x'(0)=0. Solve the initial value problem for the case when Ω < ω and show that |x(t)| < H provided A < H(1-(Ω/ω)). Homework Equations The Attempt at a Solution For my solution to...

Homework Statement An ion with a charge of +1e enters a region where the electric field produced by parallel plates at 630V separated by 7.0mm is at right angles ot a magnetic field B=450mT. The ion moves a straight line. Find the magnitude of the electric field and the speed of the ion...

I was given an assignment in my Fluid Mechanics Module with the title: Application of the Navier-Stokes Equations in Tribology Applications Yet the lecture has given no starting point and we haven't yet done anything to do with Navier-Stokes Can anyone help me on where to start?

Are there any applications at all so far depending on the so-called Copenhagen interpretation? By this I mean superposition of states that could be used in "quantum computers", quantum entanglement or "one-photon encryption". Or are there any applications coming up in the near future on any...

This thread is primarily the history of quantum mechanics, so I am not sure if it is appropriate for this forum. I understand that most of the foundational experiments in quantum mechanics were done in the first two or three decades of the 20th century. As far as I can remember, it is hard to...

Hi, Can you name a few house hold items that have a solenoid in them?APART FROM A DOOR BELL. Especially those which can be carried in hand. Thanks.

Homework Statement Hello! I'm having some difficulty getting the objective function out of this question, any help/hints would be appreciated >.< Company A prepares to launch a new brand of tablet computers. Their strategy is to release the first batch with the initial price of p_1 dollars...

Ok, so this is about my fiancee but it concerns us both since our future is, well together and whatnot. So ETS (the organization that runs the GRE exams) majorly screwed up with her official GRE scores. They misspelled her name and reversed the digits of her date of birth on the official GRE...

I'm applying for an REU this summer and I'm doing research this semester in QCD. My adviser does top quark research and at the home university of the REU applying to, there are two professors who do research in topics I'm particularly interested in, namely Lattice QCD. Neither of these two...