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Topic: Acceleration


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In the News (Fri 18 Jan 19)

  
  34. A Law of Acceleration (1904). Adams, Henry. 1918. The Education of Henry Adams
Rapid as this rate of acceleration in volume seems, it may be tested in a thousand ways without greatly reducing it.
On the human mind as a moving body, the break in acceleration in the middle-ages is only apparent; the attraction worked through shifting forms of force, as the sun works by light or heat, electricity, gravitation, or what not, on different organs with different sensibilities, but with invariable law.
The law of acceleration was definite, and did not require ten years more study except to show whether it held good.
www.bartleby.com /159/34.html   (2546 words)

  
  Encyclopedia :: encyclopedia : Acceleration   (Site not responding. Last check: 2007-11-05)
Acceleration is defined technically as "the rate of change of velocity of an object with respect to time" and is given by the equation
One common unit of acceleration is g, one g being the acceleration caused by the gravity of Earth at sea level at 45° latitude (Paris), or about 9.81 m/s².
Accelerating acceleration or jerk is the rate of change of an object's acceleration over time.
www.hallencyclopedia.com /Acceleration   (551 words)

  
 [No title]   (Site not responding. Last check: 2007-11-05)
In physics, acceleration is defined as the rate of change (or time derivative) of velocity.
One common unit of acceleration is g, one g being the acceleration caused by the gravity of Earth at sea level on the equator (~9.81 m/s²)
After defining his theory of Special Relativity, Albert Einstein realized that forces felt by objects undergoing constant acceleration are indistinguishable from those in a gravitational field, and thus defined General Relativity (which also resolved how gravity's effects could be limited by the speed of light, but that is another story).
www.wikiwhat.com /encyclopedia/a/ac/acceleration.html   (460 words)

  
 Reference.com/Encyclopedia/Acceleration
In SI units, acceleration is measured in meters/second² using an accelerometer.
Acceleration is defined technically as "the rate of change of velocity of an object with respect to time" and the instantaneous acceleration of an objection is given by the equation
a is the acceleration vector (as acceleration is a vector, it must be described with both a direction and a magnitude).
www.reference.com /browse/wiki/Acceleration   (690 words)

  
 The Physics Classroom
Since accelerating objects are constantly changing their velocity, you can say that the distance traveled divided by the time taken to travel that distance is not a constant value.
Since acceleration is a velocity change over a time interval, the units for acceleration are velocity units divided by time units – thus (m/s)/s or (mi/hr)/s.
Acceleration is a vector quantity so it will always have a direction associated with it.
www.physicsclassroom.com /Class/1DKin/U1L1e.html   (1103 words)

  
 acceleration - HighBeam Encyclopedia   (Site not responding. Last check: 2007-11-05)
ACCELERATION [acceleration] change in the velocity of a body with respect to time.
An example of such an accelerating force is the gravitational force exerted by a planet on a satellite moving in a circular orbit.
A decade of longitudinal research on academic acceleration through the study of mathematically precocious youth.
www.encyclopedia.com /html/a/accelertn.asp   (458 words)

  
 Funderstanding Roller Coaster Help
The acceleration of a roller coaster depends on its mass and how strong is the force that is pushing or pulling it.
The effective acceleration or deceleration due to gravity depends on the inclined angle of the track relative to ground; the steeper the slope is the greater the effective acceleration.
The law goes on to say that the amount of acceleration depends on the mass of the object and the amount of force applied to it.
www.funderstanding.com /k12/coaster/help.html   (2496 words)

  
 Final Rule: Acceleration of Periodic Report Filing Dates and Disclosure Concerning Website Access to Reports
These accelerated filers must comply with the new disclosure requirements concerning website access to reports for their annual reports on Form 10-K to be filed for fiscal years ending on or after December 15, 2002.
Accelerating the filing of these financial statements could require a company that does not meet the definition of an accelerated filer to file its financial statements before it would otherwise be required to do so solely because of a minority ownership stake by the investor registrant.
Accelerated filers must begin complying with the new disclosure requirement starting with their annual reports on Form 10-K to be filed for fiscal years ending on or after December 15, 2002.
www.sec.gov /rules/final/33-8128.htm   (17762 words)

  
 Acceleration: Free Encyclopedia Articles at Questia.com Online Library
The magnitude of the force F must be directly proportional to both the mass of the body m and the desired acceleration a, according to Newton's second law of motion, F=ma.
Acceleration Acceleration is perhaps one of the most misunderstood practices in education...experience it.
In the Netherlands...complaints regarding excessive braking and acceleration are common, especially in buses and...
www.questia.com /library/encyclopedia/acceleration.jsp?l=A&p=1   (1558 words)

  
 [No title]
Acceleration benefits many highly capable individuals by better motivating them toward schooling, enhancing their involvement with extracurricular activities, promoting more challenging options in the middle school and high school years, and preparing them to begin contributing to society at an earlier age.
Acceleration options should be available at each stage of development in a child’s educational program from early entrance to primary school up through early college entry in order to even out the curriculum challenge.
Acceleration policies in schools should ensure that opportunities such as the ones described here are available provisions in all gifted programs for individuals and groups of learners ready to advance beyond the standard curriculum at any age and in any area of learning.
www.nagc.org /index.aspx?id=383   (1041 words)

  
 Acceleration
Since accelerating objects are constantly changing their velocity, one can say that the distance traveled/time is not a constant value.
So to say that an object has a negative acceleration as in Examples C and D is to simply say that its acceleration is to the left or down (or in whatever direction has been defined as negative).
An acceleration of -2 m/s/s is an acceleration with a magnitude of 2 m/s/s which is directed in the negative direction.
www.glenbrook.k12.il.us /gbssci/phys/Class/1DKin/U1L1e.html   (1335 words)

  
 Acceleration Support
Acceleration is a leading provider of business class Internet solutions, including high-speed access services, web hosting / co-location, and custom programming.
Acceleration continues that tradition today, through the introduction and implementation of the newest technologies available.
Acceleration has seen explosive growth as a result of this philosophy, expanding their offering to include not only high-speed access products, but web hosting and programming services.
members.acceleration.net /pages/about.aspx   (175 words)

  
 Acceleration
Or if you prefer, acceleration is the rate of change in velocity and also (since velocity is a change in displacement) the rate of change of the rate of change of displacement.
The unit called the acceleration due to gravity, with the symbol g (roman), is not the same as the natural phenomena (discussed in a later section) called the acceleration due to gravity, having the symbol
The acceleration during the crash that killed Diana, Princess of Wales, in 1997 was estimated to have been on the order of 70 to 100 g, which was intense enough to tear the pulmonary artery from her heart -- an injury that is nearly impossible to survive.
www.hypertextbook.com /physics/mechanics/acceleration   (2448 words)

  
 Acceleration
The acceleration of the object is dependent upon this velocity change and is in the same direction as this velocity change.
The acceleration of the object is in the same direction as the velocity change vector; the acceleration is directed towards point C as well - the center of the circle.
The acceleration of an object is often measured using a device known as an accelerometer.
www.glenbrook.k12.il.us /gbssci/phys/Class/circles/u6l1b.html   (1329 words)

  
 Acceleration Watch (Understanding Accelerating Change)
An "Acceleration Watcher" is therefore neither absolutely convinced—nor uncritically happy—that the technological singularity is going to happen, but believes the phenomenon of accelerating change deserves immediate and careful scientific investigation.
Those who study accelerating change understand that there are better and worse paths toward human-machine futures, and they don't want to be caught off guard by the wide-ranging social effects of ever-more-powerful changes in computation.
The Acceleration Clock is intended as an optimistic complement and successor to the infamous (and still valuable) Doomsday Clock of the Bulletin of the Atomic Scientists.
www.accelerationwatch.com   (9778 words)

  
 A Nation Deceived
Acceleration means moving through the traditional curriculum at rates faster than typical.
Interviewed years later, an overwhelming majority of accelerated students say that acceleration was an excellent experience for them.
Accelerated students feel academically challenged and socially accepted, and they do not fall prey to the boredom that plagues many highly capable students who are forced to follow the curriculum for their age-peers.
www.nationdeceived.org   (471 words)

  
 Hoagies' Gifted: Academic Acceleration
Although the academic acceleration of gifted and talented students is probably the most comprehensively studied and evaluated of all educational interventions, many teachers are reluctant to accelerate gifted students for fear they will suffer social or emotional damage.
Acceleration is a powerful educational ally, but it’s a strategy that requires participation of parents as well as sensitivity to individual needs and circumstances.
Acceleration is intended to facilitate learning for highly able students who might otherwise be limited to a diet of repetitive educational experiences.
www.hoagiesgifted.org /acceleration.htm   (3205 words)

  
 angular acceleration - a definition from Whatis.com
Angular acceleration, also called rotational acceleration, is a quantitative expression of the change in angular velocity that a spinning object undergoes per unit time.
The magnitude, or length, of the angular acceleration vector is directly proportional to the rate of change of angular velocity, and is measured in radians per second squared (rad/s
The direction of the angular acceleration vector is perpendicular to the plane in which the rotation takes place.
whatis.techtarget.com /definition/0,,sid9_gci774878,00.html   (373 words)

  
 Application Acceleration Platforms - WAN and Data Center Solution - Juniper Networks
DX platforms accelerate web page download times, improve server capacity, increase availability of data center resources, and simplify data center architecture
Provide a scalable approach to accelerating application performance, increasing WAN capacity, and enabling application prioritization and visibility.
The WX platforms deliver compressed and accelerated output in speeds from 64 Kbps to 155 Mbps and support a range of connections to other WX and WXC devices.
www.juniper.net /products/appaccel   (296 words)

  
 Chapter 3. Acceleration
When the velocity of an object changes, the object is said to be accelerated.
We will study instantaneous acceleration more in depth later in the chapter.
In this section, we will assume that acceleration is always constant.
library.thinkquest.org /10796/ch3/ch3.htm   (522 words)

  
 Acceleration - Network World
The Accelerator 4830 and 4930 are targeted for small...
Riverbed is announcing WAN acceleration software for personal computers so users can optimize WAN connections with an appliance at data centers without installing a device at every other location.
The market for managed WAN optimization and acceleration services is heating up as another entrant joins the field.
www.networkworld.com /topics/acceleration.html   (1130 words)

  
 ASF (Acceleration Studies Foundation)
Our free occasional newsletter on key events in our accelerating world.
Accelerating Change 2005: Artificial Intelligence and Intelligence Amplification
Accelerating Change 2003: Exploring the Future of Accelerating Change
www.accelerating.org   (357 words)

  
 Motion with constant acceleration
This Java applet shows a car moving with constant acceleration.
The green control panel contains text fields where you can vary the values of initial position, initital velocity and acceleration (don't forget to press the "Enter" key!).
By using the buttons at the top right you can bring back the car to its initial position or stop and resume the simulation.
www.walter-fendt.de /ph11e/acceleration.htm   (128 words)

  
 SNAP
December 10, 2006: Congratulations to SNAP collaborators John Mather and George Smoot for being awarded the 2006 Nobel prize in physics.
SNAP - the SuperNova Acceleration Probe - is a proposed space observatory designed to measure the expansion of the Universe and to determine the nature of the mysterious Dark Energy that is accelerating this expansion.
SNAP is being proposed as part of the Joint Dark Energy Mission (JDEM), which is a cooperative venture between NASA and the U.S. Department of Energy.
snap.lbl.gov   (120 words)

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