Applications Definition and 627 Threads

Can anyone please provide me 3 examples where complex numbers are used in kinematics.

So, i want to go to grad school for math. i just got accepted into a math honor society. Will this look really good for grad school?

Hello, If you remember, I'm stuck between majoring in physics or chemistry. I've been reading a bit on the different disciplines in both chemistry and physics and I'm leaning a bit towards chemistry now. The one thing that really gets to me in chemistry is how applicable it is - you can learn...

Einstein's theory of relativity (special and general) changed dramatically physics at his time, and is still has not lost ground. But concerning it's practical sides, what are it's applications, or consequenses in today's "everyday life"? Of those I have found, fission and fusion (I...

Hello, I am stuck with two complex variable questions. Among others, I can't find residues when I have the poles, and these two questions are getting me out of hope. Maybe one of the geniuses on this site knows how to drive those 2 problems to an answer: 1) Computing the following...

Homework Statement This is a discussion question from an online course I'm taking. 1. Find an example from engineering which involves a second order derivative. This 2nd order derivative should have some name. For example, the 2nd derivative of displacement with respect to time is called...

Homework Statement the integral from negative infinity to positive infinity: z^4/(1 + z^8)dz Homework Equations The residue theorem: <http://en.wikipedia.org/wiki/Residue_theorem>. The Attempt at a Solution I found the 8th roots of z^8 = -1, which are e^(πiz), where z =1/8, 3/8...

1. to prepare short project report on the physics of one of the following Sport Space science physics of biological systems 2.needs to be 1000-1500 words 3. I have no clue how to start it!

Hi, I have a little problem. I recently got the nerve to try and teach myself all of the physical properties necessary to program a physics engine (the insomnia is a DIFFERENT problem). It's going much better than I could've hoped (considering I started a few days ago). My knowledge of physics...

Homework Statement A hockey puck of mass m is attached to a string that passes through a hole in the center of a table. The Hockey Puck moves in a circle or radius r. Tied to the other end of the string, and hanging vertically beneath the table is Mass M.. Assuming the table top is perfectly...

Homework Statement In coming to a stop the acceleration of a car is given as a= -4t. If it is traveling at 32m/s when the brakes are applied, how far does is travel while stopping? The Attempt at a Solution 1.) Integrate acceleration to find velocity as a function of time v=...

I didn't know if i should put this under physics or biology but what are some appelacations of Bio physics and what exactally is it?

Homework Statement A magnet is suspended so that it is free to swing above a coil that is connected to a power supply. A pointer has been attached to the magnet so that a small swing of the magnet will result in a large deflection of the pointer. When there is no current through the coil, the...

An elevator cable pulls an elevator up with a force of (g+a)*m for t seconds where m is the mass of the elevator, accelerating it upwards. Then, for t seconds (just as many as the first time interval), it applies an upward force of (g-a)*m, decelerating it to a stop (the net force here is...

I'm having trouble with a few homework problems, so here are the problems and my thoughts. Homework Statement Use the power series to evaluate the function f(x)= \frac{1}{\sqrt{1+x^4}}-cos(x^2) at x=0.01. Use the first two terms in the series to approximate the function, but estimate the...

1. A toboggan slides down a hill and has a constant velocity. The angle of the hill is 8.00 with respect to the horizontal. What is the coefficient of kinetic friction between the surface of the hill and the toboggan 2. Static Frictional Force, FsMax=msFn 3. I have no freaking...

I want to get some good Math/Physics apps for windows. anyone know any?

I am currently a college student who just started taking my first number theory course this week, and with all the stuff I am learning my only question is... are there practical applications to number theory? I mean there are many theories in physics yet many of those have been put to...

Homework Statement If \frac{(cos x)^{4}}{(cos y)^{2}}+\frac{(sin x)^{4}}{(sin y)^{2}}=1 prove that \frac{(cos y)^{4}}{(cos x)^{2}}+\frac{(sin y)^{4}}{(sin x)^{2}}=1 The Attempt at a Solution (cos x)^{4} (sin y)^{2}+(sin x)^{4} (cos y)^{2}=(sin y)^{2}-(sin y)^{4} On...

Two objects lie motionless in an isolated frame. One object accelerates to a speed v, then then holds that speed for an amount of time t. This causes the accelerated object to travel a time t_s into the still motionless object's future. v=\frac{c\sqrt{t_s^2+2t_st}}{(t_s+t)} If you're...

Benefit of a "Vortex Generator" in a turbocharged automotive applications As the title states, What is, if any, benefit of creating a vortex in the air flow prior to it entering the turbocharger. Here is a photo of the "Vortex Generator" in question...

Homework Statement Find the Taylor polynomial T_n(x) for the function arcsin x at a = 0, n = 3 Homework Equations Well, I understand the Taylor poly. for sine, but how do i get arcsine?

Hi, This is my first post on Physics Forums, so yay to that. :-D I have a project to do on Motion Geometry. I've gotten adequate information for most of my project. But, now, I require the applications of Motion Geometry, particularly that of rotation (I seem to have some information or the...

What are some ways that breakthroughs in quantum mechanics have been applied to real world applications?

(No, not homework) This struck me by curiosity. What applications could supercooling possibly have? :confused:

Homework Statement Please help me with this problem. If you could at least give me the formula I could probably figure it out. I have worked out all of my homework but this one. Please type out the formula in word form. I have a hard time figuring out what is squared and what all is...

Hello, I have searched through out the internet but I couldn't find any information about the origin of Pascal Triangle & how it came into being... Because I am sure that such a precise & accurate numerical array didn't come out of no where ! I will be very thankful for your guidance. My...

Hey everyone, I have a few questions concerning computers, I know a significant amount of electronics but not so much on the computer end... Anyways, say I wanted the simple application of controling a light (an LED for example) with my computer - what's the easiest way to wire-in or...

Any validity to the clinical applications for scar tissue ? http://dermaroller.de/

Something has been puzzling me...what is an imaginary number in real life? I know that engineers sometimes use it but how do they apply it to real world situations? How is it anything but a mathematical constant?

Nuclear-Plant Analyses Ordered http://online.wsj.com/article/SB120847674445424819-email.html Article also mentions that the interest in new plants is leading to heightened scrutiny of existing plants; a few licenses are at risk. Why the additional scrutiny?

Hi From what physical concept is Snell's law derived?

[SOLVED] Diff EQ applications problem A tank initially holds 25gallons of water. Alcohol enters at the rate of 2gallons/minute and the mixture leaves at a rate of 1 gallon/min. What will the concentration of alcohol be when there is 60gallons of fluid in the tank The Attempt at a...

Hi I Have Got An Assignment On Applicatiions Of Dc Shunt Motors And Dc Shunt Generators. Plz... Guys Post Ur Replies Soon. Gotta Submit It Tomorrow

can someone please help to reason out this. because i am confused...is the question about static friction..please help On a truck which is moving straightforward on an horizontal road there is a big cube of concrete of mass m. The mass of the truck is M. The truck brakes suddenly with an...

Homework Statement f(\lambda) = \frac{8\pi hc\lambda ^{-5}}{e^{hc/\lambda kT}-1} Is Planck's Law where h\ =\ Planck's\ constant\ =\ 6.62606876(52)\ \times\ 10^{-34}\ J\ s; c\ =\ speed\ of\ light\ =\ 2.99792458\ \times\ 10^{8}\ m\ s^{-1}; and\ Boltzmann's\ constant\ =\ k\ =\ 1.3806503(24)\...

Fission is a process in which a nucleus splits into two parts that are roughly the same size of the original nucleus. Tn fusion, two nuclei fuse, or combine, to form one nucleus. These reactions seem to be opposite to each other and yet both release large amounts of energy. Explain why this is...

2008 Stanford Innovation Tournament http://eweek.stanford.edu/2008/winners.html Clever and amusing.

Pliz Help me and enlighten me about the numerical and non-numerical applications of computers.

After all, fortran isn't object oriented and it's used a lot by scientists. And a lot of scientists also use C, which isn't object oriented either. So someone told me that the four languages to know (for theoretical biology) are C, Java, Perl, and Python.

Homework Statement 15) In Question 14, if the ramp makes an angle of 20 degrees with the level ground. Find the magnitude of the force tending to lift the crate vertically. Textbook Answer for Question 15: 108.3 N ---- 14) A crate is being dragged up a ramp by a 125 N force applies at an...

In a 12V dc typical car how could you possibly obtain a 24 volt power source that would charge off the existing alternator, without upgrading the entire car to run off the 24V power source? In the engine bay I would like to have access to 24Vdc power so was hoping I could either install two...

Greetings Can somebody please help me understand the use of transistor as a switch and that as an amplifier?

Homework Statement A frictionless track is to be built as shown, with L=4.60m and H=4.80m. In order to get the cart to slide from the top to the end of the track in the minimum time, how long should the distance D be? Assume that the speed of the cart on the horizontal surface is the same as...

Guys I am inquirin about some applications of any digital modulate schemes ...

Since every other message board has it, why not us? So what schools did you apply to and which ones did you get into? I applied to the following Math graduate programs: MIT Harvard Berkeley Stanford Princeton Chicago Columbia NYU Yale Cornell Texas UCSD Rutgers Duke UPENN...

Dear all, I need clarification regarding torsion angle. In textbook torsion angle is explaining that one end is rigidly fixed another end is giving load.In this we can visualize theta where as practical application motor coupled with line(transmitting lengthy shaft)shaft i cannot visualize...

Can someone explain to me 2 basic applications of RL circuits? What are they used for and some examples, please. I'm quite confused. It doesn't take much.:blushing:

Hello all, this is my first post on this site, so I'll try not to look stupid. I am currently trying to design a new intake manifold for a turbo 1.6L engine. I have never attempted to this before, but I have a few ideas in mind, and would like some feedback. First, I could use a D-shape pipe...

Hi there, I'm working on a mini research about electrical applications for nano particles, since no books are available on this (in my city). I tried the net but I was confused of the much information about nanotechnology. If anyone can find a link for an article (for free:blushing:) or any...