Complete Definition and 386 Threads

[urgent] my complete attempt of a very difficult c problem Homework Statement http://u1.imgupload.co.uk/1258070400/9847_untitled.png Homework Equations ***[SIZE="6"] i need to write it in C program. (not C++)The Attempt at a Solution #include <stdio.h> #include <math.h> #define N 368 int...

I know I'm doing something wrong here, but I can't find my mistake. 1) R^2 is a complete metric space under the ordinary Euclidean metric. 2) Consider the circle of radius 2, centered at the origin in R^2. 3) Construct a sequence {x_n} as follows: x_1 is at the apex of the circle (0,2)...

As we everybody know,in this universe, every body is in motion... Then there are no frames of references..Then how could we estimate the speed of light accurately. What about the relative speed..

A high speed train traveling at 84 kph locks its wheels and skids 84 meters before coming to a complete stop. If the rate of slowing down is constant, how many seconds will it take for the train to come to a complete stop?

I am studying Schaum's Tensor Calculus by Kay. I am attempting to work through every solved problem (covering up the answers, first) and every supplementary problem. I am not a student. My day job is computational chemistry, so I can only do this in my spare time (whatever that is!). A...

... after you've taken your first undergrad course in quantum mechanics? Or does it take years , perhaps even well after you've earned your pHd in physics , for your understanding of the basic and advanced principles of quantum mechanics to be complete? Too hard to tell for me, but if I only...

In trying to solve a problem, I was using the simple F1D1 = F2D2 as the balance point of a lever. My limited physics knowledge knew no better. My hypothetical involved using the "short side" of a lever to lift a weight on the long side of a lever. After thinking about it... I realized I...

Homework Statement Gasoline consists primarily of octane, C8H18 Calculate the mass of CO2 produced from the complete combustion of 3.79 L (1.00 gallon) of gasoline (assume octane, density = 0.756 g/mL) with excess O2 The Attempt at a Solution The balanced chemical formula would be: 2C8H18 +...

Homework Statement Using the equations from question 1 determine how long it will take the rabbit to come to a complete momentary stop. Homework Equations X= 30cm + (-40 cm/s)t + (24 cm/s^2)t^2 V= (-40cm/s) + (12 cm/s^2)t V^2= (-40 cm/2)^2 + 2(12 cm/s^2)[X-30cm] The Attempt at...

The problem (#3) can be found here:http://img198.imageshack.us/i/img002lf.jpg/" It would be helpful if someone could look over my solution (found here:http://img525.imageshack.us/i/img001of.jpg/" ) and also it would be helpful if anyone had a different approach to this problem. Thanks

Hello, why the set of all real numbers is complete metric space with euclidean metric? I know, that metric space is complete iff all sequences in it converges. But 1,2,3,4,... diverges. Thanx

I'm looking to assemble a capacitor charger in a nice, durable enclosure. I already have the DC to HV DC converter. I'm just looking, now, for a way to indicate when the capacitor is fully charged, practically identical to how a flash-enabled camera indicates when its capacitor is charged and...

Homework Statement Prove that \ell^1, the space of all (real) sequences v = \{v_k\} such that \sum|x_k| < \infty , is complete. Homework Equations \ell^1 is a normed space with the norm ||x|| = \sum |x_k| The Attempt at a Solution Let v_n be a Cauchy sequence of sequences in...

yo. today I got "quantum mechanics demystified", and I heard it has a lot of typos. Can you list them all for me (in tex if possible)?

http://discovermagazine.com/2009/may/01-the-biocentric-universe-life-creates-time-space-cosmos/article_view?b_start:int=0&-C=

Hi. I've found the following relation (in a book about the qm 3-body scattering theory): <\Omega^{\pm}^{\dagger} \Psi_n|p>= ... = 0 where |p> is a momentum eigenstate. So it is shown, that the inner Product is zero. Then they conclude that \Omega^{\pm}^{\dagger}|\Psi_n> = 0 because the...

Homework Statement Raindrops of mass 0.99 mg fall vertically at a constant speed of 9.0 m/s, striking a horizontal skylight at the rate of 1000 drops/s and draining off. The window size is 17.0 cm x 25.0 cm. Assume the collisions of the drops with the window are completely inelastic...

Yes, I know I can easily google this... but forums is more fun :smile: Is the job title "Neuroscientist" a vague term, is it sort of like engineering? What type of engineer? How would I get started about researching the brain? Job prospects? Is it like psychology, that if you only had a...

Where i can find complete data for material elastic constants?? I need elastic constants, piezoelectric coefficients & permittivity for different semiconductor alloy? Someone could kindly help...

What is meant by a "complete solution"? What is meant by a complete solution of a system of ODEs? (Such, as for example, in the Hamiltonian formulation of an N-particle system) I am trying to relate the definition here...

Homework Statement I need to find as much as a complete logarithmic formulas worksheet or tutorials I have not been in school for atleast 2 semesters and the class I am taking right now makes use of the basic logarithmic functions, not to complicated from what the teacher has told us. I do...

What is the difference between a boolean algebra and a complete lattice? What are their similarities?

Is any distinction made between an expression like A^\nu A_\mu and one that looks like A^\mu A_\mu? I can justify something like this to myself through some vague hand-waving and mention of a phrase like "just dummy indices," but this isn't convincing even to me...and I'm making the argument...

i got these vectors which are othronormal v1 (1/2,-1/2,1/2,-1/2) v2 (-1/2,1/2,1/2,-1/2) i need to compete them into orthonormal basis i did row reduction on them and added these independant vectors to the group v3(1,0,0,0) v4(0,1,0,0) now all four vectors are independant...

Homework Statement Statement 1: Average value of AC over a complete cycle is always zero. Statement 2: Average value of AC is always defined over half cycle. We need to tell whether these two statements are right, and if 1 is right then whether 2 is its explanation. Homework...

hello everyone, i'd be really appreciative of some help. I'm doing as physics and have never done proper physics before therefore I'm finding it quite hard. we are doing about waves at the moment and was wondering about a couple of things:- 1st - how to calculate frequency using the time base...

hello everyone, i'd be really appreciative of some help. I'm doing as physics and have never done proper physics before therefore I'm finding it quite hard. we are doing about waves at the moment and was wondering about a couple of things:- 1st - how to calculate frequency using the time base...

I'm currently a first year (Life Science) undergraduate in a Canadian University and I was thinking of trying to complete a minor in math. I kind of like math and it does somewhat interest me; but lately I have become lazy, I feel like I was much more school orientated in high school. I'm am...

This is from the M1 review excercise Edexcel. I've managed to do a) b) and c) and but now I'm completely stuck. I'm no particular wizz at mechanics and getting stuck at d) means I'm suddenly uncertain about e) and f) :(. Here is the question: In this question i and j are horizontal unit...

I'm pretty sure this is correct, but could someone verify for rigor? Problem Two observables A_1 and A_2, which do not involve time explicitly, are known not to commute, yet we also know that A_1 and A_2 both commute with the Hamiltonian. Prove that the energy eigenstates are, in general...

heres a link http://techtv.mit.edu/collections/8012/videos of 9 current mit intro physics videos. i don't know if they have been posted or not.. somewhat hard to see the board, but if u listen u can make it out. -shoobs

Hi all, can anybody complete my answer?(I'm unable to solve the second part of the integral) problem and answer(incomplete) : [PLAIN]www.andishe9.com/integral.bmp[/URL] thanks and excuse me for english;)

Homework Statement Let X be a non-empty set and let C be the set of all bounded real functions defined on X, with the metric induced by the supremum norm: d(f,g) = ||f - g|| = sup |f(x)-g(x)| , x in X. Show that the metric space (C,d) is complete. Hint: if \{f_{n}\} is a cauchy sequence...

Homework Statement We say that two metrics d, d' on a space S are equivalent if each "dominates" the other in the following sense: there exist constants M, M'>0 such that d'(x,y)<=M' d(x,y) and d(x,y)<=M d'(x,y) for all x,y in S. If metrics d, d' are equivalent, prove that (S,d) is...

Dear Users Hello! MY First Post I want to make rock solid concepts in Quantum Mechanics General not any specific branch of Quantum Mechanics like Quantum Computing,Perturbation Theory etc etc Schaums Outline is good one but a little lack of more theory any suggestions Which Book will do that...

Homework Statement Suppose f >= 0, f is continuous on [a,b], and {integral from a to b} f(x)dx = 0. Prove that f(x) = 0 for all x in [a,b] Homework Equations The Attempt at a Solution Suppose there exists p in [a,b] s.t. f(p) > 0. Let epsilon = f(p) / 2 > 0. The...

Is it possible to show that an ONB (orthonormal base is complete). I am quite irritated by the insertions of ones of the form \sum_{n} \left| \Psi_n \right\rangle \left\langle \Psi_n\right| if the vectors are the eigenvectors of some Hamiltonian. So now the more precise questions: 1) Is there a...

Just wondering why its always denoted by the letter k.

I am wondering if somebody can please help me to locate a very accurate, complete periodic table. Specifically, I'm looking for one that is color, contains electron configurations, and is up-to-date and accurate to the typical number of decimal places. I've searched Google and was not happy...

What is the total file size for the complete MiKTeX system? The website (http://www.miktex.org/Setup.aspx ) doesn't seem to give this information.

Continuously differentiable Function C^1 {} \left[0,1\right] is complete with respect to the metric space D_\infty{}{f,g}=sup{\left|f(t)-g(t)\right|}+sup{\left|f^1{}(t)-g^1{}(t)\right|} but not in the d_\infty{}{f,g}=sup{\left|f(t)-g(t)\right|} Thanks for the helps in advance. Regards... BI

Homework Statement When baseball outfielders throw the ball, they usually allow it to take one bounce on the theory that the ball arrives sooner this way. Suppose that after the bounce the ball rebounds at the same angle theta as it had when released (see figure below) but loses half its...

I've searched high and low for a terse (yet complete) introduction to the foundations of non-relativistic QM. Shankar is unparalleled in terms of completeness, yet it is infuriatingly verbose. Landau's presentation is a bit dated and difficult to follow in many instances. It is also not as...

i thought i understand it but i guess i don't... you can expand a function in cosine f.s., sine f.s. and complete f.s. on some [0..L]. i thought that the coefficients a_n and b_n for complete expansion would come from sines and cosines respectively, but i guess that wouldn't make sense...

I was given to complete and balance the complete combustion of C5H12 I did this by adding O2 so it would be combusted and got: C5H12 (g) + 8O2 (g) --> 5CO2 (g) +6H2O (g) is this correct? thanks.

I know this is a common and important fact, so I've been willing to accept it, but this has always been something that has been "outside the scope" of my quantum lectures. Does anyone have reference for a proof?

and at what age did you complete your undergrad and grad degrees and phD if you did it? I have a feeling that after one reaches thirty one cannot progress further... since most famous researchers were still young while making their greatest discoveries... anyways, my feelings aside... I...

Hello guys , am a new to high school physics and chemistry. I have several questions about electric current , atoms etc. :confused: Okay so here it goes..:-p 1. What is electric potential and potential difference in simple language ? I heard that there are charges in metals and...

Homework Statement I'm reading a book on analysis independently. There is a Theorem that R is complete, i.e. any Cauchy sequence of real numbers converges to a real number. He let's a1, a2, a3, ... be a Cauchy sequence, then considers the the set: S = { x an element of R : x ≤ an for...

Has anyone here used this book? If you have, how would you rate it. To my surprise many programmers seem to despise Schildt's books. One is usually directed to this page to make the point. I was surprised because I found his beginner's guide on C++ quite easy to read and understand. (And...