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Jerk (also known as Jolt) is the rate of change of an object's acceleration over time. It is a vector quantity (having both magnitude and direction). Jerk is most commonly denoted by the symbol j and expressed in m/s 3 ( SI units ) or standard gravities per second ( g 0 /s).
Snap, [6] or jounce, [2] is the fourth derivative of the position vector with respect to time, or the rate of change of the jerk with respect to time. [4] Equivalently, it is the second derivative of acceleration or the third derivative of velocity, and is defined by any of the following equivalent expressions: = ȷ = = =.
Jerk (physics), an aspect of variable motion; Half of the clean and jerk, an Olympic weightlifting lift; Jerk (cooking), a style of cooking native to Jamaica; Jerk (dance), a 1960s fad dance; Jerkin', a dance
Examples include the coupled oscillation of Christiaan Huygens' pendulums, fireflies, neurons, the London Millennium Bridge resonance, and large arrays of Josephson junctions. [ 59 ] Moreover, from the theoretical physics standpoint, dynamical chaos itself, in its most general manifestation, is a spontaneous order.
A soda jerk is someone who makes a living by jerking, or pulling, sodas at a lunch counter, the name coming from the jerking motion required to open a tap. To jerk off is to masturbate, again coming from the motion required for men to engage in this activity. Founded by a Mr. Jerk Gosling in 1623.
overlapping antonyms, a pair of comparatives in which one, but not the other, implies the positive: An example is "better" and "worse". The sentence "x is better than y" does not imply that x is good, but "x is worse than y" implies that x is bad. Other examples are "faster" and "slower" ("fast" is implied but not "slow") and "dirtier" and ...
Knee jerk or patellar reflex — a kick caused by striking the patellar tendon with a tendon hammer just below the patella, stimulating the L4 and L3 reflex arcs. Moro reflex , a primitive reflex — only in all infants up to 4 or 5 months of age: a sudden symmetric spreading of the arms, then unspreading and crying, caused by an unexpected ...
An unpaired word is one that, according to the usual rules of the language, would appear to have a related word but does not. [1] Such words usually have a prefix or suffix that would imply that there is an antonym, with the prefix or suffix being absent or opposite.