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Амплітуда стоячої хвилі визначається формулою:
A=2A│cos(kx+α/2)│
A(ω)=F0/m∙((ω20 – ω2)2 +4β2ω2)1/2
A2(t) = A12 + A22 + 2 A1A2cos(φ2 - φ1);
A=A0exp(-βt)
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