Unformatted text preview: λ = 2 π/k m ω Angular frequency. We usually drop the “angular.” ω = 2 πν = 2 π/T radians/s ν Frequency. Usually, ω is more convenient. ν = ω/ 2 π = 1 /T 1/s T Period. Length in time of one oscillation. T = 1 /ν = 2 π/ω s φ Phase angle. radians v g Group velocity. v g = dω/dk m/s v p Phase velocity. Sometimes c is used. v p = ω/k m/s Beware in particular of the frequent misuse of “angular frequency” as frequency. I give above ν , the frequency, T , the period, and λ , the wavelength, though we don’t often talk about them, as they are more familiar in everyday usage. 1...
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 Spring '08
 WITTICH,P
 Physics, Heat, Frequency, Angular frequency, onedimensional wave equation

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