Search results
Results from the WOW.Com Content Network
In kinematics, the speed (commonly referred to as v) of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time; it is thus a non-negative scalar quantity. [1] The average speed of an object in an interval of time is the distance travelled by the object divided by the ...
In terms of a displacement-time (x vs. t) graph, the instantaneous velocity (or, simply, velocity) can be thought of as the slope of the tangent line to the curve at any point, and the average velocity as the slope of the secant line between two points with t coordinates equal to the boundaries of the time period for the average velocity.
BuzzFeed, Inc. is an American Internet media, news and entertainment company with a focus on digital media.Based in New York City, [2] BuzzFeed was founded in 2006 by Jonah Peretti and John S. Johnson III to focus on tracking viral content.
Variables allow mathematicians to describe the operations that have to be done on the numbers represented using mathematical formulas. [ 34 ] Until the 19th century, algebra consisted mainly of the study of linear equations (presently linear algebra ), and polynomial equations in a single unknown , which were called algebraic equations (a term ...
One barn is equal to 1.0 × 10 −28 m 2. The name derives from the folk expressions "As big as a barn," and "Couldn't hit the broad side of a barn", used by particle accelerator physicists to refer to the probability of achieving a collision between particles. For nuclear purposes, 1.0 × 10 −28 m 2 is actually rather large. [25]
A plane flying past a radar station: the plane's velocity vector (red) is the sum of the radial velocity (green) and the tangential velocity (blue). The radial velocity or line-of-sight velocity of a target with respect to an observer is the rate of change of the vector displacement between the two points.
Buzz!: Brain of the World is a 2009 party video game developed by Relentless Software and published by Sony Computer Entertainment for the PlayStation 2, PlayStation 3 and PlayStation Portable. It is the eighth instalment in the Buzz! series of quiz video games. The game has 21 regional variations with the game's title varying by region, but ...
The harmonic mean is an average which is useful for sets of numbers which are defined in relation to some unit, as in the case of speed (i.e., distance per unit of time): ¯ = (=) For example, the harmonic mean of the five values: 4, 36, 45, 50, 75 is