Young Rogers
01/11/2024 · Primary School
1. Calculer les intensités du son \( U_{1}, U_{2} \) et \( U_{3} \) après la première plaque d'isolation, la deuxième plaque d'isolation et la troisième plaque.
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Les intensités du son après les plaques d'isolation sont calculées en multipliant les coefficients de transmission et l'intensité initiale. Donc, \( U_{1} = t_1 U_{0} \), \( U_{2} = t_2 t_1 U_{0} \), et \( U_{3} = t_3 t_2 t_1 U_{0} \).
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