Fórmulas Ondas PDF

Title	Fórmulas Ondas
Author	Melba Pérez
Course	Física II
Institution	Bachillerato (España)
Pages	1
File Size	46.9 KB
File Type	PDF
Total Downloads	74
Total Views	158

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Summary

Resumen de todas las fórmulas de las ondas...

Description

M.A.S. 𝑑𝑥(𝑡) 𝑑𝑣(𝑡) 𝑑  𝑥(𝑡) = = 𝐴 ⋅ 𝜔 ⋅ cos(𝜔 ⋅ 𝑡)𝑎(𝑡) = 𝑑𝑡 𝑑𝑡 𝑑𝑡 = −𝐴 ⋅ 𝜔 𝑠𝑒𝑛(𝜔 ⋅ 𝑡) 𝐹 = 𝑚 ⋅ 𝑎 = −𝑚 ⋅ 𝐴 ⋅ 𝜔 ⋅ 𝑠𝑒𝑛(𝜔 ⋅ 𝑡) = −𝑚 ⋅ 𝜔 ⋅ 𝑋 = −𝑘 ⋅ 𝑥 𝑋(𝑡) = 𝐴 ⋅ 𝑠𝑒𝑛(𝜔 ⋅ 𝑡)𝑣(𝑡) =

FECHA 22/01

Velocidad de vibración y aceleración de las partículas del medio 𝑑𝑦(𝑥, 𝑡) 𝑑[𝐴 ⋅ 𝑠𝑒𝑛 ⋅ (𝜔 ⋅ 𝑡 − 𝑘 ⋅ 𝑥)] = 𝐴 ⋅ 𝜔 ⋅ cos(𝜔 ⋅ 𝑡 − 𝑘 ⋅ 𝑥) 𝑣(𝑥, 𝑡) = 𝑑𝑡 𝑑𝑡 𝑑𝑣(𝑥, 𝑡) 𝑑[𝐴 ⋅ 𝜔 ⋅ cos(𝜔 ⋅ 𝑡 − 𝑘 ⋅ 𝑥)] 𝑎(𝑥, 𝑡) = 𝑎(𝑥, 𝑡) = = −𝐴 ⋅ 𝜔 ⋅ 𝑠𝑒𝑛(𝜔 ⋅ 𝑡 − 𝑘 ⋅ 𝑥) 𝑑𝑡 𝑑𝑡 𝑣(𝑥, 𝑡) =

Energía cinética 𝐸 =

1 1 ⋅ 𝑚 ⋅ 𝑣  = ⋅ 𝑚 ⋅ 𝐴 ⋅ 𝜔 ⋅ cos  (𝜔 ⋅ 𝑡 − 𝑘 ⋅ 𝑥) ⩾ 0 2 2

Energía potencial 𝐿𝐸𝑌𝐷𝐸𝐻𝑂𝑂𝐾𝐸 = 𝐹 = −𝑘 ⋅ 𝑥𝐸 =

1 2

⋅ 𝑘 ⋅ 𝑥 =

1 1 ⋅ 𝑘 ⋅ 𝑦  𝐸 = ⋅ 𝑘 ⋅ 𝐴 ⋅ 𝑠𝑒𝑛  (𝜔 ⋅ 𝑡 − 𝑘 ⋅ 𝑥) 2 2

Energía mecánica 𝐸 = 𝐸 𝑚á𝑥 = 𝐸 𝑚á𝑥 =

1 4𝜋 ⋅ 𝑚 ⋅ 𝐴 ⋅  = 2 ⋅ 𝑚 ⋅ 𝐴 ⋅ 𝜋 ⋅ 𝛾  2 𝑇

Potencia 𝑃=

Δ𝐸 2 ⋅ Δ𝑚 ⋅ 𝐴 ⋅ 𝜋  ⋅ 𝛾  2 ⋅ 𝜇 ⋅ Δ𝑥 ⋅ 𝐴 ⋅ 𝜋  ⋅ 𝛾  = = = 2 ⋅ 𝜇 ⋅ 𝑣 ⋅ 𝐴 ⋅ 𝜋 ⋅ 𝛾  Δ𝑡 Δ𝑡 Δ𝑡

Intensida 

𝐸 = 𝐼 ⋅ Δ𝑡 ⋅ 𝑆=> 𝐼 = ⋅ Intensidad es la potencia de la onda por unidad de superficie 𝐸 𝑃 2 ⋅ 𝜋  ⋅ 𝜇 ⋅ 𝑢 ⋅ 𝐴 ⋅ 𝛾  𝐼= = = Δ𝑡 ⋅ 𝑆 𝑆 𝑆...