NounSingular particle Plural particles particle (plural particles)
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GNU Free Documentation License What is the gravitational potential energy of a two-particle system...? Q. What is the gravitational potential energy of a two-particle system formed by a 5.4 kg particle and a 2.8 kg particle with a gravitational attraction of 2.7 multiplied by 10-12 N? If you triple the separation between the particles, how much work is done by the gravitational force between the particles? How much work is done by you? Asked by Emily - Tue Feb 10 14:19:49 2009 - - 2 Answers - 0 Comments A. The magnitude of the force of gravity is: F = G m1 m2 / r^2 Solve that for the radius r = sqrt (G m1 m2 / F) Gravitational potential energy is given by: U = - G m1 m2 / r Substituting the r from the force law gives you: U = - sqrt (F G m1 m2) They give you the force and the masses. You can look up Newton's big G. Plugnchug to get your potential energy. Note that it is negative. The potential energy is taken to be zero at infinity and falls as the particles get closer. Potential energy is inversely proportional to r. So if you multiply r by n, you have to divide the potential energy by n. The work you do is the difference between the final and initial potential energies. W = U(nr) - U(r) = U(r)/n - U(r) = U(r) (1/n - 1) = sqrt (F [cont.] Answered by ( )Mistress Bekki - Tue Feb 10 14:29:06 2009 What is the particle size used for face powder/mineral veil microfinish powder? Q. Hi, I wondered if anyone out there can tell me what the particle size is for the powders used as microfinish face powder make up like mineral veil. I believe the base is silica powder so if I can find out what the particle size is I should be able order the powder direct from a chemical supplier and avoid the mark up of the cosmetic companies. Asked by Taoman - Sun May 18 15:09:13 2008 - - 2 Answers - 0 Comments A. contact a supplier. I think it varies. Cuz some minerals are micronized and some aren't. I got an eyeshadow kit from a place called TKB trading (online) once. I think they sell a bunch different minerals for making makeup. good luck Answered by Just Sarah - Sun May 18 17:03:08 2008 What is the magnitude of the velocity of the particle?
Q. Consider a particle of mass m = 14.0 kg revolving around an axis with angular speed (omega). The perpendicular distance from the particle to the axis is r = 1.75 m. 1.) Assume omega = 25.0 rad/s. What is the magnitude v of the velocity of the particle in m/s? 2.) Now that you have found the velocity of the particle, find its kinetic energy K. Answer in Joules. Asked by xgoddess210 - Tue Apr 14 19:48:01 2009 - - 1 Answers - 0 Comments A. v = w*r = 25*1.75 = 43.75 m/s KE = (1/2)*m*v^2 = 13398.44 J Answered by Al P - Tue Apr 14 19:58:43 2009 From Yahoo Answer Search: "particle"  news.google.com Chicagoist They can say it's "surface radiation" or anything they want to say, but a high-energy particle is a high-energy particle . and more » news.google.com Cosmos The Standard Model is our (nearly) complete map of every fundamental particle and force that exists. Even the ancient Greeks knew that ... news.google.com CNYLink from Eagle Newspapers Dark matter may be composed of weakly interacting massive particles (WIMPs). WIMPs would travel across space and time through ordinary matter, ... The Tricks of Dark Matter Researcher Softpedia all 4 news articles » From Google News Search: "particle"  domino.lancs.ac.uk 216px x 350px | 132.10kB [source page] A particle accelerator at CERN in Geneva where the ATLAS experiment is based  utc.fr 323px x 456px | 26.20kB [source page] Ergun Design Technology Example of results obtained from Particle module From Yahoo Image Search: "particle"  openprocessing.org unknown Fri, 05 Mar 2010 05:28:22 GM 0 ) { F = mass * C.mass; // magnitude dx = ( mass * x + C.mass * C.x ) / ( mass + C.mass ); dy = ( mass * y + C.mass * C.y ) / ( mass + C.mass ); dz = ( mass * z + C.mass * C.z ) / ( mass + C.mass ); // find point to which . particle. is ...  xenophilius.wordpress.com Xeno Fri, 05 Mar 2010 18:57:26 GM The technique relies on the strange quantum phenomenon called entanglement, in which two . particles. share the same existence. This deep connection means that a measurement on one . particle. immediately influences the other, ...  qualitydigest.com Raissa Carey Mon, 22 Feb 2010 21:30:38 GM (Whitehouse Scientific: Chester, UK) -- At Powtech 2010, which happens on April 27 29 in Nuernberg, Germany, Whitehouse Scientific will exhibit the company's new opaque standards for . particle. size analysis. ... From Google Blog Search: "particle" |
