En un concierto al aire libre en un día caluroso (con temperatura del aire de 25°C), usted está sentado a 7.00 y 9.10 m, respectivamente, de un par de bocinas, una a cada lado del escenario. Un musico animado toca un solo tono a 494 Hz. ¿Qué tono escucha en términos de intensidad? (Considere las bocinas como fuentes puntuales.). La diferencia de longitud de trayectoria (2.10 m) entre las ondas que llegan a su localidad deben expresarse en términos de la longitud de onda del sonido. Para hacer esto primero necesitamos conocer la longitud de onda. Dada la frecuencia podemos encontrar la longitud de onda a partir de la relación v=λ*f
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Ответ:
i
dont speak spanish
Explanation:
Ответ:
my answer would be (b The path must have enough symmetry so that B(r)*dl is constant along large parts of it.