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In classical mechanics, impulse (symbolized by J or Imp) is the change in momentum of an object. If the initial momentum of an object is p 1 , and a subsequent momentum is p 2 , the object has received an impulse J :
Specific impulse should not be confused with total thrust. Thrust is the force supplied by the engine and depends on the propellant mass flow through the engine. Specific impulse measures the thrust per propellant mass flow. Thrust and specific impulse are related by the design and propellants of the engine in question, but this relationship is ...
Showing, from top to bottom, the original impulse, the response after high frequency boosting, and the response after low frequency boosting. In signal processing and control theory, the impulse response, or impulse response function (IRF), of a dynamic system is its output when presented with a brief input signal, called an impulse (δ(t ...
Impulse (physics), in mechanics, the change of momentum of an object; the integral of a force with respect to time Impulse noise (disambiguation) Specific impulse, the change in momentum per unit mass of propellant of a propulsion system
Common examples of linear time-invariant systems are most electronic and digital filters. Systems with this property are known as IIR systems or IIR filters . In practice, the impulse response, even of IIR systems, usually approaches zero and can be neglected past a certain point.
For example, to calculate the dynamics of a billiard ball being struck, one can approximate the force of the impact by a Dirac delta. In doing so, one not only simplifies the equations, but one also is able to calculate the motion of the ball, by only considering the total impulse of the collision, without a detailed model of all of the elastic ...
The impulse response and step response are transient responses to a specific input (an impulse and a step, respectively). In electrical engineering specifically, the transient response is the circuit’s temporary response that will die out with time. [ 1 ]
For example, if feelings of hate towards another person make one anxious, the ego can facilitate the flow of love to conceal the hostility." [2] Where reaction-formation takes place, it is usually assumed that the original, rejected impulse does not vanish, but persists, unconscious, in its original infantile form. [1]