Fundamental Definition and 907 Threads

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Ok, I was given a question in homework and was never told the right answer. If the Fundamental Frequency = 15Hz, the 3rd Harmonic = ? I estimated it at 45Hz because of an example The example was; Harm 1 = 100 x 1 = 100Hz Harm 2 = 100 x 2 = 200Hz Harm 3 = 100 x 3 = 300Hz If so...

thare are 8 candidates for three student seats how many different ways can the seats be chosen? With the FCP I get 24 If it is a permutation I get 336 which is right and why? Thanks for the help

Hi Guys, I'm a first year Electrical Engineering student and we're just covering the basics of circuit analysis. Currently we are going over Nodal analysis. I'm having some trouble correctly identifying the currents that are entering and leaving a node in a circuit. I can get most simple...

I didn't see a topology forum, so I thought I'd post this question here. Can anyone give any pointers on using van Kampen's theorem? I understand the basic way it works, decompose a space X into open, path-connected sets, say U and V. Then pi1(U) * pi1(V) = pi1(X)/N, where N is a normal...

I understand that harmonics are integer multiples of a fundamental frequency. Also, that the relative strengths of the harmonics are what make the same note on different instruments sound different. Why are these other frequencies made? How many integer multiples are there? Why do our...

Which one is more fundamental or more difficult in solving real-life problems, professional engineering work or theoretical research?

Could you check whether I am doing these questions right: 1. \int_{0}^{4} (2+x) dx . So I use the Fundamental Theorem of Calculus F(b)-F(a) and receive: \frac{(x+2)^{2}}{2} = F(4) - F(0) = 16 2. \int_{-1}^{1} (4t^{3} - 2t) dt = t^{4} - t^{2} = F(b)-F(a) = 0 3. \int_{0}^{3}...

I have these two queries regarding the fundamental theorems: 1. The fundamental theorem for divergences is given by: \int_v (\nabla.\vec v)d\tau = \oint_s \vec v.d\vec a According to this theorem, the integral of the divergence of a vector over a volume is equal to its surface...

Use part I of the Fundamental Theorem of Calculus to find the derivative of \int_x^{3} sin(x^3) dx F'(x)=_________________ (answer goes here) i think i need to integrate the problem first, but it seems impossible. can someone help?

Question :\int_0^{49pi^2} (sin(sqrt(x))/(sqrt(x)) dx should i just solve it as a regular integral like usally and then do F(b) - F(a)? if so, why is it called Fundamental Theorem of Calculus if it's just like a regular integral?

A horizontal string of length 1.5 m vibrates with a wave velocity of 1320 m/s at its fundamental freq. a. What is the fund. freq.? Do I use the formula f_1 = v/4L? b. What is the freq. of the 4th overtone and how many nodes and antinodes will it have? To find 4th's freq. use f_n =...

Which of the following could be the fundamental freq. for a vibration that has an overtone freq. of 990 Hz? a. 330 b. 660 c. 148 d. 1980 e. 1990 (All in Hz.) The formula that I think you have to use is f_n = n*f_1, where f_1 is fud. freq. Then, I thought f_2 = 2*f_1, where f_2...

Two identical violin strings, when in tune and stretched with the same tension, have a fundamental frequency of 440.0 Hz. One of the strings is retuned by adjusting its tension. When this is done, 1.5 beats per second are heard when both strings are plucked simultaneously. -What is the...

Hi there, Can someone explain to me what the following are and how each one is used as a tool for the next one: 1)Indefinite integral 2)Riemann Sum 3)Definite Integral 4)Fundamental Theorem of Calculus(The part which says that the derivative of the integral of f(t)dt from a to x is...

I've been trying to research this area but there doesn't seem to be much out there. Does anyone know of any evidence or theory showing that quarks and leptons are or are not fundamental? I have heard of String Theory but does string theory actually suggest that quarks and leptons are made...

OK I'm unclear about how to use FCP to solve this problem: The final score in a hockey game is 5-2. How many different scores are possible at the end of the second period? :confused:

In order to decrease the fundamental frequency of a guitar string by 2%, by what percentage should you reduce the tension? I'm so lost can you point me in the right direction?

Fundamental mathematic proofs... I know this may seem a slightly odd question, but are there any website or pdf files, etc, floating around of proofs of the basic pricipals and "tricks" of maths? eg - adding, subtraction, multiplication, division, fractional sums and products, percentages, etc...

I'm a high school student and am a junior right now. I like physics, and quantum theory, perhaps because it will be our future. Therefore, in order to understand it, I need to know calculus. Since I don't have homework, I don't work out the problems. I try to understand the critical...

Wow, it has been awhile! China has been fun, but now it is time to get back to the states and also math work! Here is a problem that has been giving me some problems. It reads: \prod from i=1 to n, pi^ai for each i is the canonical representation of a, deduce a formula for the sum of...

is suicide the individuals most basic and fundamental right? is it incosiderate for individual to kill himself and deprive his family and society of himself, since it is in most cases the circumstances and inconsideration of the society that is the cause of this?

Can anyone provide a good reference (preferably on-line), or a decent description, of how the fundamental constants of electromagnetism are experimentally determined? I'm talking about constants like the permitivity and permeability of free space. I'm also curious how the unit of charge...

Hello everyone, its been a while. It's been almost 4 months since I did anything calculus related so I forgot all of my skills. :bugeye: The problem is: Use the Fundamental Theorem of Calculus to find the derivative of the function h(x) = \int_{2}^{\frac{1}{x}} \arctan{t} \,dt

so could anyone tell me was is weak nuclear force and electromagnism force and storng nuclear forces thank you!

could someone be kind enough to explain to me why the fundamental postulates of special relativity introduced thanks

My professer told us to think about this problem. I have the answer in my solutions manual but I want to know how I would go through the thinking process to solve it...(and others like it) The question says "Find a function f and a number a such that...

hey, I am a bit confused about the forces. if there's four of them, where does color fit in? the hyper-physics website says that the strong force is a 'residual color fource'... but see the thing is, it also says the force-carrying boson is the pion, while the gluon carries the color force...

I wonder how do you distinguish the fundamental forces? After all, they are each only a bunch of Newtons.

Do you know somewhere to download ebooks on Number Theory ? (fundamental and free please :redface:

Is it known for sure that any or all of the fundamental forces produce a push or a pull affect? Thanks.

What is understood to be the fundamental "states" of energy? Not referring to the various "forms" of energy. Thanks for any input.

On http://elasticity2.tripod.com/ I have replaced all previous work with a table showing tha structural relationship between fundamental particles. (Muon and Tau will be included when I have changed the scale of current work tables). I show that there are only three fundamental particles, each...

Like quarks, space charges are also fractionally charged particles. But unlike quarks, the absolute magnitude of space charges is always 1/6 while that of quarks are 2/3 and 1/3. There are also two polarities (+/-) of space charges. The grouping of space charges forms the elementary particles...

Hi Russell, New thread because I think it deserves a new thread! I think Chapter I of "Foundations" is very difficult for people to follow. Hopefully, you now understand the essence of what I was trying to communicate there. I think that, under the definitions I listed for the concepts...

Hi, In the attached address ( http://www.geocities.com/complementarytheory/M_E.pdf ) you can find my reexamination of fundamental mathematical concepts. Please read all of it before you air your view about it. Thank you, WWW

Which are (basic?) quantum nubers of fundamental particles? I am having problems becouse a lot of expresions are used on sites on the web: el. charge, color charge, mass, taste, spin, barion & lepton number... to many :eek: :confused:

Can some on pleases explain this too me. I have an AP book, and i am to do a few problems out of it for class, and but can't find it in there ANY WHERE. Any help would be superb! -Jacob

Perhaps this question has been addressed before, but, allow me to ask: What consitutes the classification of a "fundamental" particle? Does a fundamental particle have ANY half-life? Seems it would not. Is a fundamental particle completely impervious to destruction?

Most Fundamental Elements? Science continues to discover more fundamental elements with which to govern its predictions on and to unite a wider breadth of the universe. The latest, string theory, posulates, in laymens terms, that there are even smaller elements governing all aspects of our...

Fundamental Postulate Of Special Relativity: The speed of a photon in any inertial reference frame must be measured as c, where c = 299792458 meters per second. It is provable within the framework of the special theory of relativity, that Theorem Of Special Relativity: If all...

Here's one... A book has a mass of say 0.2 kg, it's red, and burns at a certain temperature. Its properties can be explained by its constituent molucular make-up. Water molecules have a pH of 7. Its enthalpy of fusion is 6 kJ/mole, etc, etc. These properties can be explained by its two...

Does anyone know of any good references on the relationship between string vibrations and fundamental particles such as quarks, leptons, and the gauge bosons, containing an explicit mathematical description of said relationship? Any information would be appreciated.

In a thread in PF's Special and General Relativity ("What if the speed of light was slower") there is a discussion on physical constants, including c. lethe pointed out that there are only 26* truly fundamental constants, and posted a link to a John Baez page with a discussion of these...

The Standard Model defines Bosons, along with Fermions, as Fundamental Particles. At the same time, Mesons, which include Bosons, are supposed to be a compound made up of a quark and an anti-quark. So, which is it? Is a Boson a fundamental particle or a compound (ie.Hadron)?

What is it about the action integral in physics? Symmetries in the action integral leads to the Euler-lagrange equations. And it seems every physical situation is described by equations that must satisfy the differential equation of the Euler-lagrange. This Euler-lagrange equation must be...

The dial on a 3 number combination lock contains markings to represent the numbers from 0 to 59. How many combinations are possible if the first and second numbers differ by 3? What I did was: 1st number: It can be any of the 60 numbers (if we take 0 also as a #) 2nd number: I think since...

Are we being very naive to think that there are only four fundamental forces in the universe? I mean after all the Greeks thought that there were only four elements in the universe. How do we expect to know for sure that unification involves only those four forces?

theory development sure comes quick sometimes! Could our illusive Gravity be THE fundamental force and all other forces be just a variation on a theme?

PLease forgive my ignorance if this proves to be nothing more than a showing of how far behind I have become in the last 3 years...but here it is: I was outside mowing my lawn the other day, thinking about the universe, nature, etc., when I asked the question: "What force is causing the...