group speed

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group speed, velocity

(Physics / General Physics) Physics the speed at which energy is propagated in a wave. This is the quantity determined when one measures the distance which the radiation travels in a given time. In a medium in which the speed increases with wavelength the group speed is less than the phase speed, and vice versa

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phase speed			Grieving relatives of Michelle and David Statham and their four children were joined by safety campaign group Speed Kills in asking: "How many people must die for the toughest sentence to be handed out? Six lives, one year; Campaigners: How many need to die for the ... by Birmingham Mail (England) However, campaign group Speed Safe said the devices were dangerous as they encouraged drivers to "go into zombie mode". Call for speed limiters in cars by Daily Record (Glasgow, Scotland) The nearshore, shallow area adds very little to the duration of the wake, because the difference of the group speed of different components is small. Far-field vessel wakes in Tallinn Bay/ Laevalainete kaugmojust ... by Parnell, Kevin; Delpeche, Nicole; Didenkulova, Ira; Dolphin, Tony; Erm, Ants; Kask, Andres; Kelpsait / Estonian Journal of Engineering			group B group captain group Centrospermae group discussion group dynamics group home group insurance group interment group marriage group meeting group O Group of Eight Group of Five Group of Seven Group of Seventy Seven group of targets Group of Ten Group of Three Group of Twenty-Four group participation group practice group psychotherapy group Pteridospermae group Pteridospermaphyta group rendezvous group speed group theory group therapy grouped Grouped columns grouper groupie grouping groupthink groupuscule groupware grouse grouse whortleberry grouse-berry grouseberry grouser grout Grouthead grouting Groutnol grouts Grouty Grove grovel Groveler groveling			Group Rotations Group Round-Trip Time Group Routing and Charging Equipment Group sales group scheduling Group Scout Leader Group Secretary Representative Alternate Group Secure Association Key Management Protocol Group Security Association Group Security Parameter Index Group selection Group selectionism Group Self-Insurance Group separator Group separator Group Service Representative Group Services Agreement Group Services Application Programming Interface Group Sessions Rating Scale Group Sex Fic Group Signal-Space Blind Adaptive Noncoherent Decorrelator group software group specific (gs) antigen group specific (gs) antigen group specific (gs) antigen group specific antigen group specific antigen group specific antigen group specific antigen group specificity group speed Group Station Group Status Group Strategic Review Group Studies for New Christians Group Study Course Group Study Exchange Group Successive Interference Cancellation Group suicide Group suicide Group Summary Tool Group Supplemental Retirement Annuity Group Support System Group Suppression Group Surgical Medical Insurance Plan Group Surgical-Medical Insurance Plan Group Switch Module Group Switch System Group Switching Centre Group Tactic group teaching group teaching group teaching group teaching Group Technologies Corporation Group technology Group technology Group Technology & Operations Group Telecom Group Temporal Key

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