Complete Definition and 386 Threads

http://www.physics.auburn.edu/~boivin/homework9.htm "A bullet of mass m and speed v passes completely through a pendulum bob of mass M. The bullet emerges with a speed of v/2. The pendulum bob is suspended by a stiff rod of length l and negligable mass. A) What is the minimum value of v...

Is it true that any smooth manifold admits a complete riemannian metric? Can you prove it? If not can you give a counter example? Obviously we can always put a riemannian metric on any smmoth manifold the question is does the differentable structure allow us to find a complete one.

"string theory is a complete scientific failure" by Daniel Friedan to make it clear, I am quoting Daniel Friedan, a former string theorist at Rutgers from hep-th/0204131 "The long-standing crisis of string theory" "String theory has no credibility as a candidate theory of physics...

Is there a commonly-used name for a complete preorder (a transitive and total relation, Sloan's A000670 and A011782 for labeled and unlabeled, respectively) within set theory? (Not a total order, mind you -- it need not be antisymmetric.) I've heard the term "weak order", but that's from the...

There's a variety of NP-Complete problems like the Clique problem, the Hamiltonian cycle problem, Satisfiability, etc. Recently i discovered a simple puzzle problem that is NP-Complete (the proof involves a straightforward reduction of the Clique problem). Anyway, i built the actual puzzle...

Announced in http://www.intlpress.com/AJM/p/2006/10_2/AJM-10-2-165-492.pdf" . Differential Geometry meets Geometric Surgery on three-manifolds; Perelman clarified and (perhaps) corrected. A COMPLETE PROOF OF THE POINCAR´E AND GEOMETRIZATION CONJECTURES – APPLICATION OF THE...

Something i noticed while laughing at the people on yahoo answers was that some people can make very elaborate and lengthy answers yet be completely wrong! I see that on this forum as well (and its fun when mods/science advisors tear them down). It's just amazing to see nearly page long...

hi, At what age you competed your phD? As I have calculated, I would have completed my phD right at the age of 28, is it too LATE? I have heard that some professors completed their phD at 23 or even 21. terrible.. ... Twukwuw.

Is "a complete graph" meaningful ? Is "a complete graph" meaningful ?

If a planetoid undergoes a complete fracture between substantial portions of its mass, how often will gravity maintain its spheroidal integrity, and how often repair the break?

I was asked to prepare a complete search about Z-transform can anyone help me find files or resources about it.

Maxwell's Equations: \nabla \cdot D= \rho \nabla \cdot B=0 \nabla \times E=- \partial B/ \partial t \nabla \times H=J+ \partial D/ \partial t Together with the continuity eq: \nabla \cdot J=- \partial \rho / \partial t There are 9 scalar equations and 16 scalar unknowns (B, E, D, H, J...

Please read, it's for a PLTW term paper! Hello, I am a high school student enrolled in the PLTW (Project Lead the Way: Principles of Engineering) Program, and I was instructed to do a term paper on any type of engineering. I have chosen aerospace engineering, and I am required to conduct an...

I need someone to tell me if I answered these questions correctly and if not explain what I did wrong. My answers are in bold. 1. Indicate which of the following are true and which are false in an interpretation in which A and B are false and C is true. a) (A v (B ^ C)) (false) b) (-A ^ (B...

Our scientists are still stepping at the original place. Although many scientists want to detect the supernatural power and study the supernatural abilities, but now still are no breakthrough. Now really there are many supernaturals, we don't know why! But we have no complete and reliable...

The complete combustion of RDX is 2C3H6N6O6 + 302 --> 6H2O + 6CO2 + 6N2. How much heat is liberated from the complete combustion of 10g of RDX? delta H values: H20 = -286, CO2 = -394, RDX = +65 (all in kJ/mol) I thought it'll be (6*-286 + 6*-394) - (2*65) = -4210 kJ/mol Then divide...

Hi Ho! ^_^ Actually, what is the definition of a complete binary tree? I have searched the Internet and come up with several definition. This problem is confusing enough. According to http://planetmath.org/encyclopedia/CompleteBinaryTree.html , "A complete binary tree is a binary tree...

A[r,c] = \left(\begin{array}{cccccc} \frac{1}{2}\multsp \left(1+{\sqrt{5}}\right)&-&-&-&-&...\\ \frac{1}{4}\multsp \left(2+{\sqrt{8}}\right)&\frac{1}{4}\multsp \left(1+{\sqrt{5}}\right)&-&-&-&...\\ \frac{1}{6}\multsp \left(3+{\sqrt{13}}\right)&-&\frac{1}{6}\multsp...

A solid marble of mass m=35 and radius r=7 cm will roll without slipping along the loop-the-loop track if it is released from rest somewhere on the straight section of the track. From what minimum height h above the bottom of the track must the marble be released to ensure that it doesn't leave...

Hi I've looked at the website of the university I have applied to, and they use these three books the first semesters. (physics bachelor degree) Calculus : A Complete Course (5th Edition) Robert A. Adams Linear Algebra and Its Applications David C. Lay Elementary Differential...

If you have a particle that is attached to two elastic strings moving with SHM. How can I determine whether or not the particle performs complete oscillations? For example I have a particle that's at a point equidistant from A and B (which are the ends of the two strings), and say that the...

I searched for a topic already about this and i couldn't really see one so here we go. A teacher of mine showed this problem to me and could not see a solution just as i cannot either. A single laser beam is sent on a path as in the diagram enclosed as an attachment. If you look in the...

A runner hopes to complete the 10,000 m run in exactly 30 minutes. After exactly 27 minutes, there are still 1100 meters to go. The runner must accelerate at .20 m/s^2 for how many seconds in order to achieve the desired time? Assume the runner ran with constant velocity for the first 27...

http://edition.cnn.com/2004/WORLD/meast/11/04/iraq.weapons.ap/ . Though like many impresarios his management style is a bit heavy-handed:

Complete the square - Help please :) Not to good with fractions, so I'm posting this here. x^2 + 3x +4 Complete the square. Ill try: (x + 3/6)^2 + ? lol best i can do sorry :) Thanks

My mom is a self-employed accountant and does all of her work on an old HP Pavilion that is just too slow, so she wants a new one. Just buying a complete PC is probably the most reliable and safe thing for her to do but I really don't know where to shop from. Are there any companies that are...

I think that fon Neumann's Theorem about unpossibility of Hidden Variables does not include the all kind of Hidden Variables. There is HV, which does not have the corresponding to one operator to one quantitative which measurable. In addition Bell's Inequality does not include this class of...

I am giving my ladyfriend my old Dell computer with Windows 98 OS. I would like to transfer all of the files in her old computer (also Windows 98) to her "new," gift computer. I seek to do this by means of intervening cable. Where can I get instructions on how to do this? (The Windows 98...

Is Cosmic Matter Composition Complete ? Convincing theoretical and observational evidence indicate that 5% of mass of the universe is made up protons, neutrons, and electrons (.05%). 25% of the mass is from dark matter. What is dark matter? Nobody is certain. 70% from dark energy of repulsive...

I would absolutely concentrate on going to and finishing college with a degree in either Forestry or Physics, then, after that, I would go thru the process of becoming a family man.

Hi,why do we need a complete ciruit required in order to have a continious flow of current.An early reply will be appreciated. Thanks in advance Ariel:frown:

In comparison with other physics forums I enjoy the special qualities of this one. People here seem to be more open to a friendly dialogue (rather than indulging in personal aggressions, as is widespread) in the aim of developing more complete views and insights. The implied capacity to 'listen'...

I am really new to this site and I'm only 15 so if this sounds unclear please forgive: When light hits water it diffracts so i want to ask would it be possible to make something invisible between this medium of when the light hits the water and defracts.

If we can find a formula to determine the state of a system in a future moment then we have the informations about that system before light could travel to us...got it ? So...isn't this in contradiction with relativity ? Or something like time travel ? (in the future)

The Complete Idiot's Guide to Calculus INTRODUCTION I've never really been very good at math and when I found out I had to take a Calculus class I started to panic. Once I gathered myself I went to the local bookstore to see if I could get a book to read so i could get a heads start. We are...

Hi there, thanks for coming to the thread about the single most widely abused word in all of internet discussion forumdom: logic. A few months back, I decided to pick up a textbook on the subject and work through it cover to cover. I’m about halfway done, but I thought I’d present the notes...