61. Fundamental Physical Constants LookSmart Directory - physics Data and constants Data constants. physics Data and constants - Look up constants usedin physics and find data relating to various physics concepts. http://www.nku.edu/~physics/constants.html

Fundamental Physical Constants Exponent (base 10) of decimal numbers: e n n Units are separated by spaces, positive numbers denote powers, all units to the right of the slash are in the denominator (negative powers). Planck constant / Plancksches Wirkungsquantum h 6.6260755e-34 J s h / (2 pi) = 1.05457266e-34 J s Boltzmann constant / Boltzmannsche Konstante 1.380658e-23 J/K Elementary charge / Elementarladung e 1.60217733e-19 C Avogadro number / Avogadrosche Zahl 6.0221367e23 particles/mol Speed of light / Lichtgeschwindigkeit c 2.99792458e8 m/s Permeability of vacuum pi e-7 T2 m3/J 12.566370614e-7 T2 m3/J Permittivity of vacuum (mu_0 c^2) 8.854187817e-12 C2/J m Fine structure constant / Feinstrukturkonstante 1 / alpha Electron rest mass / Elektronenruhemasse 9.1093897e-31 kg Proton rest mass / Protonenruhemasse 1.6726231e-27 kg Neutron rest mass / Neutronenruhemasse 1.6749286e-27 kg Bohr magneton / Bohrsches Magneton eh / (4 pi m_e) 9.2740154e-24 J/T Nuclear magneton / Kernmagneton eh / (4 pi m_p) 5.0507866e-27 J/T Free electron g factor / g-Faktor des freien Elektrons Free electron gyromagnetic ratio 2 pi g_e mu_B / h 1.7608592e11 1/s T

62. Internet Public Library: Physics physics.nist.gov/cuu/constants/index.html?/codata86.html This document gives thevalues of the basic constants and conversion factors of physics and chemistry http://www.ipl.org/div/subject/browse/sci54.00.00/

dqmcodebase = "/javascript/" Subject Collections Business Computers Education ... Physics This collection All of the IPL Advanced The science of matter and energy and their interactions. Sub-headings: Astrophysics Where physics and astronomy merge. Resources in this category: You can also view Magazines Associations on the Net under this heading. The American Experience: Meltdown at Three Mile Island http://www.pbs.org/wgbh/pages/amex/three/ Contains information about the meltdown at Pennsylvania's Three Mile Island nuclear power plant, including a timeline and facts on key people and events, plus a teacher's guide. Also outlines the episode of the PBS series "The American Experience" relating to the Three Mile Island accident. Amusement Park Physics: What are the Forces Behind the Fun? http://www.learner.org/exhibits/parkphysics/ This exhibit describes the physics behind different amusement park rides in basic terms. It discusses roller coasters, carousels, bumper cars, free fall rides, and pendulum rides. Activities demostrating the concepts are included, such as designing your own roller coaster. It also includes extra sections about ride safety and motion sickness. Additional resources, both web sites and printed materials, are provided. Andrei Sakharov: Soviet Physics, Nuclear Weapons and Human Rights

63. Constants (JADE V6.0 API) constants. java.lang.Object com.dautelle.physics.constants For example importcom.dautelle.physics.constants.*; // JDK1.5+ new feature. public http://jade.dautelle.com/api/com/dautelle/physics/Constants.html

Overview Package Class Tree Deprecated Index Help ... METHOD DETAIL: FIELD CONSTR com.dautelle.physics Class Constants java.lang.Object com.dautelle.physics.Constants public abstract class Constants extends java.lang.Object This class defines fundamental physical constants in their symbolic form. The new JDK1.5 (Tiger), lets you avoid qualifying static members with class names, making it easier to use this class. For example: Fundamental constants may also be defined in non-symbolic form in the corresponding quantity class (e.g. Velocity.SPEED_OF_LIGHT for c or Mass.ELECTRON for me Note: Constant names use the full range of Unicode characters and are mixed uppercase/lowercase to resemble symbolic names as much as possible Reference: CODATA Internationally recommended values of the Fundamental Physical Constants (1998) Version: 4.6, July 15, 2003 Author: Jean-Marie Dautelle Field Summary static Quantity Holds the permeability of vacuum or magnetic constant. static Quantity µB Holds the Bohr magneton (ePlus·hBar/2me) static Quantity µN Holds the nuclear magneton (ePlus·hBar/2mp) static Length Holds the Bohr radius (α/(4π·Rinf)) static Mass amu Holds the unified atomic mass unit (0.001 kg/mol)/N

64. Scientific Constants Pulled From Serways Physics For Scientists And Engineers Scientific constants Pulled From Serways PhysicsFor Scientists And Engineers ( Component ). http://cwashington.netreach.net/depo/view.asp?Index=730

65. BritneySpears.ac: Physical Constants Physical constants. In the following section we list some of the more common physicalconstants that will be of use when calculating stuff. . Constant. Symbol. http://britneyspears.ac/physics/constants/constants.htm

[ Home ] [ Picture Galleries ] [ Britney Spears guide to Semiconductor physics ] [ Links ] ... [ Newfeed ] Physical Constants In the following section we list some of the more common physical constants that will be of use when calculating stuff. Source: CODATA 1986. More information about the calculation and uncertaintity in constants here Constant Symbol Value Units Speed of light in vacuum (c) 299792458 (exact) m s Permeability of vacuum 4 pi e-7 (exact) N A Permittivity of vacuum F m Newtonian constant of gravitation (G) m kg s Planck constant (h) J s Planck constant in eV eV s h-bar (h-bar) J s h-bar in eV eV s Boltzmann constant (k) J K Boltzmann constant in eV eV K Boltzmann constant in Hz K s Boltzmann constant in wavenumbers m K Electron mass kg Electron mass in u u Electron mass in eV eV Atomic mass unit (u) kg Standard atmosphere (atm) Pa Standard acceleration of gravity m s Electron volt (eV) J Planck mass kg Planck length m Planck time s Elementary charge (e) C Magnetic flux quantum Wb Josephson frequency-voltage quotient V s Quantized Hall conductance Omega Quantized Hall resistance Omega Bohr magneton J T Bohr magneton in eV eV T Bohr magneton in Hz T s Bohr magneton in wavenumbers m T Bohr magneton in kelvins K T Nuclear magneton J T Nuclear magneton in eV eV T Nuclear magneton in Hz T s Nuclear magneton in wavenumbers m T Nuclear magneton in kelvins K T Fine structure constant (alpha) Inverse fine structure constant Rydberg constant (Ry) m Rydberg constant in Hz s Rydberg constant in joules J Rydberg constant in eV eV Bohr radius m Hartree energy J Hartree energy in eV eV Quantum of circulation

66. Numerical Constants - Mathematics & Physics - Numericana Viswanath s constant was computed to 8 decimals in 1999. Furstenberg and Kesten wasused in the research that earned the 1977 Nobel Prize in physics for Philip http://home.att.net/~numericana/answer/constants.htm

home index units counting ... physics Final Answers , Ph.D. Numerical Constants Primary Conversion Factors : Basic relations between various systems of units. 6 Fundamental Dimensionful Physical Constants: Speed of Light in a Vacuum (Einstein's Constant): c = 299792458 m/s. Magnetic Permeability of the Vacuum : An exact value defining the ampere unit. Planck's constant : The ratio of a photon's energy to its frequency. Boltzmann's constant : Relating temperature to energy. Avogadro's number : The number of things per mole of stuff Mechanical Equivalent of Light (683 lm/W at 540 THz) defines the candela Fundamental Mathematical Constants: : Zero is the most fundamental and most misunderstood of all numbers. 1 and -1 : The unit numbers. p ("Pi"): The ratio of the circumference of a circle to its diameter. : The diagonal of a square of unit side. Pythagoras' Constant f : The diagonal of a regular pentagon of unit side. The Golden Number Euler's e : The base of the exponential function which equals its own derivative. ln(2) : The alternating sum of the reciprocals of the integers. Euler-Mascheroni Constant g : The limit of [1 + 1/2 + 1/3 +...+ 1/n]

67. Physics Of Sound there are no direct links to the Glossary links generally lead to other placesin the physics section. Physical constants, Units, and Conversion Factors. http://www.silcom.com/~aludwig/Physics/Main/Physics_of_sound.html

Physics of Sound Derivation of the equations of fluid mechanics and sound from a molecular model of an ideal diatomic gas (immediately below). General integral solution of the sound equations Green's function boundary integral. Plane and spherical wave spectra representations of sound. Cone and flat piston radiating in an infinite baffle - exact and numerical solutions. Generalized multipole technique , numerical solution method based on multipoles Point source radiating in a moving medium General solution for Doppler shift. Molecular noise and "blackbody" radiation The first topic occupies the remainder of this section, and includes a number of subtopics listed below. Comments welcome. E-mail to: aludwig@silcom.com Physics books [e.g. Feynman , and Landau and Lifshitz ] typically discuss the molecular nature of sound, but then derive the sound wave equations by modeling air as a continuous elastic medium (i.e. no lumpy molecules). Mathematically this is just fine, but I find it much more satisfying to derive the wave equations directly from the molecular point of view. I also think this is a more straightforward derivation, since it completely avoids any need to deal with "specific heat ratios" or "adiabatic processes." The effects associated with these terms arise quite naturally directly from the molecular model. This is a rather technical section, and assumes familiarity with calculus, differential equations, and statistics. There is an equation-free description of the physics of sound in the

68. Are The "Fundamental Constants" Of Physics, Constant? Are the Fundamental constants of physics, Constant? Why ask this question? Whatthe heck is a Fundamental Constant? Has science addressed this question? http://www.don-lindsay-archive.org/creation/constants.html

Are the "Fundamental Constants" of Physics, Constant? Why ask this question? What the heck is a Fundamental Constant? Has science addressed this question? What about the speed of light slowing down? Last modified: 27 December 1998 Up to the physics page. Back to the Creation/Evolution page. Email a comment. Search this web site

69. Round Earth Society - Scientia: Some Numbers And Constants From Physics And The Spread The RES! Send this text to a friend! Hosted By. SOME NUMBERS AND CONSTANTSFROM physics AND THE UNIVERSE. by Raymond A. Serway. The Solar System. http://www.str.com.br/English/Scientia/physics1.htm

Published: 08/27/1999 Updated: 07/11/2000 Click on the sponsor's banner above and help the Round Earth Society to grow! Welcome What's New Authors Acknowledgements ... Draw! Areas of the RES Main R.E.S. Atheos Scientia ... Links Support Us: Donate! Donate Any Ammount! Need Help? Got Questions? Member Registration Click and register now! Debate Survey D o you believe that the predictions and the claims of astrology are valid? Y es N o O ther Opinion See The Current Results Spread The RES! S end this text to a friend! Hosted By SOME NUMBERS AND CONSTANTS FROM PHYSICS AND THE UNIVERSE by Raymond A. Serway T he Solar System Body Mass (kg) Average Radius (m) Period (s) Distance to the Sun (m) Mercury 3,18 x 10 2,43 x 10 7,60 x 10 5,79 x 10 Venus 4,88 x 10 6,06 x 10 1,94 x 10 1,08 x 10 Earth 5,98 x 10 6,37 x 10 3,156 x 10 1,496 x 10 Mars 6,42 x 10 3,37 x 10 5,94 x 10 2,28 x 10 Jupiter 1,90 x 10 6,99 x 10 3,74 x 10 7,78 x 10 Saturn 5,68 x 10 5,85 x 10 9,35 x 10 1,43 x 10 Uranus 8,68 x 10 2,33 x 10 2,64 x 10 2,87 x 10 Neptune 1,03 x 10 2,21 x 10 5,22 x 10 4,50 x 10 Pluto 1,4 x 10

70. PhysicsWeb - When Constants Are Not Constant When constants are not constant physics in Action October 2001.The recent finding by an international team of astronomers that http://physicsweb.org/article/world/14/10/4

Advanced site search physics world January February March April May June July August September October November December Latest issue Subscribe to Physics World Media Information ... Editorial Staff quick search Search Physics World Previous Physics World October 2001 Next When constants are not constant Physics in Action: October 2001 The recent finding by an international team of astronomers that the fine-structure constant has increased over time may support the idea that the universe has extra dimensions. In the movie The Meaning of Life , the Monty Python team reminds us that we live in "an amazing and expanding universe". Ever since the startling evidence for cosmic expansion was discovered in the 1920s, physicists have considered the possibility that the so-called constants of nature - such as the charge on the electron and the gravitational constant - are not constant and may, in fact, vary with time. In the late 1960s, George Gamow suggested that the charge on the electron, e , may vary rather than gravity. More precisely, he considered a variation in the fine-structure constant, a e h -bar c , where h -bar is the Planck constant divided by 2 pi and c is the speed of light. The fine-structure constant is the gauge-coupling constant in quantum electrodynamics and determines the relative strength of the electromagnetic force. In essence

71. PhysicsWeb - Are The Laws Of Nature Changing With Time? There are theoretical reasons why a and other dimensionless constants might varywith time. The holy grail of theoretical physics is to find a single unified http://physicsweb.org/article/world/16/4/9

Advanced site search physics world January February March April May June July August September October November December Latest issue Subscribe to Physics World Media Information ... Editorial Staff quick search Search Physics World Previous Physics World April 2003 Next Next page Are the laws of nature changing with time? Feature: April 2003 Precise measurements on the light from distant quasars suggest that the value of the fine-structure constant may have changed over the history of the universe. If confirmed, the results will be of enormous significance for the foundations of physics WHAT do we mean by "the laws of nature"? The phrase evokes a set of divine and unchanging rules that transcend the "here and now" to apply everywhere and at all times in the universe. The reality is not so grand. When we refer to the laws of nature, what we are really talking about is a particular set of ideas that are striking in their simplicity, that appear to be universal and have been verified by experiment. It is thus human beings who declare that a scientific theory is a law of nature and human beings are quite often wrong. The development of a scientific theory has always followed the need to understand an observation for which no satisfactory explanation previously existed. When developing new theories, physicists tend to assume that fundamental quantities such as the strength of gravity, the speed of light in a vacuum or the charge on the electron are all constant. And when these theories are found to predict the results of new observations, our belief that these quantities are actually fundamental constants becomes even stronger.

72. [physics/0110060] Trialogue On The Number Of Fundamental Constants This paper consists of three separate articles on the number of fundamentaldimensionful constants in physics. We started our debate http://arxiv.org/abs/physics/0110060

Physics, abstract physics/0110060 From: Michael Duff [ view email ] Date ( ): Sat, 20 Oct 2001 15:58:41 GMT (32kb) Date (revised ): Thu, 28 Feb 2002 20:17:04 GMT (34kb) Date (revised v3): Fri, 13 Sep 2002 18:43:49 GMT (51kb) Trialogue on the number of fundamental constants Authors: M. J. Duff L. B. Okun G. Veneziano Comments: Version appearing in JHEP; 31 pages latex Report-no: MCTP-01-45, CERN-TH/2001-277 Subj-class: Classical Physics; General Physics This paper consists of three separate articles on the number of fundamental dimensionful constants in physics. We started our debate in summer 1992 on the terrace of the famous CERN cafeteria. In the summer of 2001 we returned to the subject to find that our views still diverged and decided to explain our current positions. LBO develops the traditional approach with three constants, GV argues in favor of at most two (within superstring theory), while MJD advocates zero. Full-text: PostScript PDF , or Other formats References and citations for this submission: CiteBase (autonomous citation navigation and analysis) Which authors of this paper are endorsers?

73. [physics/0004062] Testing Cosmological Variability Of Fundamental Constants One of the topical problems of contemporary physics is a possible variabilityof the fundamental constants. Here we consider possible http://arxiv.org/abs/physics/0004062

Physics, abstract physics/0004062 From: Alexander Potekhin [ view email ] Date: Tue, 25 Apr 2000 14:18:49 GMT (43kb) Testing cosmological variability of fundamental constants Authors: D. A. Varshalovich A. Y. Potekhin A. V. Ivanchik (Ioffe Phys.-Tech. Inst., St.Petersburg) Comments: 9 pages, 2 figures, 2 tables, LaTeX using aipproc.sty (included). In: X-ray and Inner-Shell Processes, R.W. Dunford, D.S. Gemmel, E.P. Kanter, B. Kraessig, S.H. Southworth, L. Young (eds.), AIP Conf. Proc. (AIP, Melville, 2000) vol. 506, p. 503 Subj-class: Atomic Physics; General Physics on the average over the last ten billion years. Full-text: PostScript PDF , or Other formats References and citations for this submission: CiteBase (autonomous citation navigation and analysis) Which authors of this paper are endorsers? Links to: arXiv physics find abs

74. Knowledge-Physics-Constant physics . Physical constants. Physical constants, most ofthem named after the discoverer. This page is a little under construg. http://www.geocities.com/ultrastupidneal/Knowledge-Physics-Constant.html

Name of Constant Atmospheric Pressure Atomic Mass Unit Avogadro's Number Bohr's Radius Boltzmann's Constant Electric Constant Elementary Charge Faraday's Constant Gas Constant Gravitational Constant Light-time for unit distance Loschmidt's Constant Planck's Constant Planck's Length Planck's Mass Planck's Time Rydberg's Constant Speed of light in a vacuum Stefan-Boltzmann's Constant Equal To (Is) 101,325 pascal 0.00000000000000000000000000166053873 kilogram 0.0000000005291772083 meter 0.000000000000000000000013806503 joule 0.000000000008854187817 farad 0.0000000000000000001602176462 coulomb 96,485.3415 coulomb 8.314510 joule 499.004782 second 0.000000000000000000000000000000000662606876 joule 0.000000000000000000000000000000000016160 meter 0.000000021767 kilogram 0.000000000000000000000000000000000000000000053906 second 10,973,731.568549 meter 299,792,458 meters per second Physics Physical Constants Physical constants, most of them named after the discoverer. This page is a little under construg.

75. EDU2 : Level 2 American Frontiers; Touching the Limits of Sciencephysics; UR Departmentof physics Physical constants Workshop; University of Winnipeg http://www.my-edu2.com/EDU/physic.htm

EDU2 :PHYSICS ABCentral Search Helpers Submit a Link ... WAVES *APPLIED PHYSICS* APPLIED PHYSICS : TITLE *CONDENSED MATTER* Condensed Matter Physics David Tomanek's Home Page:and condensed matter physics Experimental Soft Condensed Matter Group:squishy physics Home page of physics research group Spectroscopy of Condensed Matter, Amsterdam ... Theory of Inhomogeneous Condensed Matter *ELECTRICITY* AC Circuit Analysis Analogías electromecánicas Análisis de circuitos por ordenador BOWest Pty Ltd - Library Index:electricity theory ... Van de Graaff Generator *INTERESTING ASPECTS* A WALK THROUGH TIME - National Institute of Standards and Atomic Clock Candle Flames In Microgravity Clifford A. Pickover's Home Page:physinterests ... The Speed of Light - A Limit on Principle ? *MAGNETISM* ELECTROMAGNETICS SITE Electromagnetic Field Theory Internet Textbook Project Magnet Man - Cool Experiments with Magnets Magnet University *MECHANICS* Advanced Mechanics of Solids Bang! Boing! Pop!:and conservation of energy Basic Aerodynamics Buoyancy ... mekanik *MODERN* MODERN PHYSICS : TITLE *NUMERICAL* A. Peter Young :physics and monte carlo

76. MSN Encarta - Related Items - Physics branches of physics. classical (Newtonian) and preclassical physics. condensed-matter(solid-state) physics. constants. Avogadro’s Number. c, speed of light. http://encarta.msn.com/related_761553206_19/constants.html

var fSendSelectEvents = true; var fSendExpandCollapseEvents = true; var fCallDisplayUAText = false; MSN Home My MSN Hotmail Shopping ... Money Web Search: logoImg('http://sc.msn.com'); Encarta Subscriber Sign In Help Home ... Upgrade to Encarta Premium Search Encarta Related Items from Encarta Physics Mechanics Quantum Theory Thermodynamics A Brief Introduction to Particle Physics ... Feedback

77. The Physics Of Everyday Stuff: The Shotput One of the first topics in a physics course is the motion of projectiles, such asa is given by the equation y(x) = a + bx + cx² , where a,b,c are constants. http://www.bsharp.org/physics/stuff/shotput.html

The Shotput One of the first topics in a physics course is the motion of projectiles, such as a shotput. A shotput is a very ideal projectile to look at because it isn't affected much by the air it moves through. One can therefore ignore effects like air drag or aerodynamic lift in the case of a shotput. (Photo by Jeff Ott Projectile Motion You have perhaps heard that a shotput follows a parabolic trajectory. A parabola is a line that is given by the equation , where a,b,c are constants. Why does a shotput follow a parabolic arc, and not some other curve? The answer lies in the nature of motion in the presence of gravity. And to look at that, let's first drop the shotput from the top of a wall of height h (making sure no one we like is standing below). If we record its fall with a video or film camera, we can write its height y as a function of time t . Say the wall has a height of 10 m (a very high wall); you'd get a table of y(t) such as second column below (units are put in brackets, like [s] for seconds and [m] for meters): t [s] y [m] v [m/s] It takes a little over 1.4 s for the shotput to drop from a height of 10 m. Note that the shotput falls

78. NY Regents High School Physics Exam Constants Metric Prefixes, Energy Level Diagrams, Heat constants, Resistivitiesat 20ºC, Electromagnetic Spectrum. Uranium Series, Indices of Refraction, http://online.cctt.org/physicslab/content/NYregents/2002RegentsConstants.asp

Metric Prefixes Energy Level Diagrams Heat Constants Resistivities at 20ºC ... Classification of Matter Posted with the permission of the New York State Education Department New York State Library System Catharine H. Colwell PhysicsLAB Mainland High School Daytona Beach, FL 32114

79. NY Regents High School Physics Exam Constants Posted with the permission of the New York State Education DepartmentNew York State Library System. Copyright © 20012004 PDF http://online.cctt.org/physicslab/content/NYregents/RegentsConstants.asp

Posted with the permission of the New York State Education Department New York State Library System Catharine H. Colwell PhysicsLAB Mainland High School Daytona Beach, FL 32114

80. AS/A2 LEVEL PHYSICS: Fundamental Constants AS/A2 Level physics Fundamental constants Geoff Camplin s physics Service,Bristol BS20 7DX, UK GC.Camplin, B.Sc., Ph.D., C.Phys., F.Inst.P. http://home.clara.net/camplin/Physics/ALevel/Cons.htm

AS/A2 Level Physics Fundamental Constants Geoff Camplin's Physics Service, Bristol BS20 7DX, U.K. G.C.Camplin, B.Sc., Ph.D., C.Phys., F.Inst.P. The Fundamental Constants given in the table below do not have to be quoted accurately in examinations, unless you are specifically required to do so. An approximate value (usually given in the examinations) may be used instead in order to simplify calculations. For example; the speed of light usually required for examinations is 3 x 10 m/s, not 2.99 x 10 m/s. Quantity Magnitude Unit Symbol speed of light 2.99 x 10 m s c Planck constant 6.63 x 10 J s h Boltzmann constant 1.38 x 10 J K k Avogadro constant 6.02 x 10 mol N A mass of proton 1.672 x 10 kg m P mass of neutron 1.674 x 10 kg m N mass of electron 9.31 x 10 kg m e charge on proton +1.6 x 10 C e charge on electron -1.6 x 10 C e specific charge on electron -1.76 x 10 C kg e/m e permittivity of vacuum 8.85 x 10 F m permeability of vacuum x 10 H m Stefan constant 5.67 x 10 W m K molar gas constant J mol K R gravitational constant 6.67 x 10

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Page 4     61-80 of 112    Back | 1  | 2  | 3  | 4  | 5  | 6  | Next 20