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Ejercicios. Energía y potencia de una onda
3 years ago
11
1.Una onda senoidal tiene una velocidad de propagación de 4 m / s. Si tiene amplitud de 1 m, período de 0.2 s, fase igual a 3.14/ 3 y densidad lineal de 0.02 kg / m, encontrar:
a) la ecuación de la señal;
b) su longitud de onda;
c) su energía por unidad de longitud;
y d) su potencia.
2. ¿A cuántos decibeles corresponde un sonido cuya intensidad sonora es de 100 x 10 exp-12 W / m2? ¿Y uno de 0.001 W / m2? (I0 = 10-12 W / m2)
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