{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

sonido - Instituto Tecnolgico de Estudios Superiores de...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Instituto Tecnol´ ogico de Estudios Superiores de Monterrey Sonido Fisica-II. Prof. Jos´ e Luis Garc´ ıa Luna January 6, 2009 INTENSIDAD DEL SONIDO 1. Una fuente sonora puntual de 20 W de potencia ac´ustica emite ondas esf´ ericas en un medio is´otropo y sin absorci´on. Determinar la intensidad de la onda a 10 m en dB . ( R: 102 dB ) 2. Un m´ aquina emite un ruido con una potencia de 1 W . Suponiendo que el sonido se propaga en forma de onda esf´ erica, determinar: a) La intensidad ac´ustica a 20 m en W/m 2 ; b) El nivel de intensidad en ese punto; c) ¿A qu´ e distancia el nivel de intensidad es de 60 dB ? ( R: 1 . 99 × 10 - 4 W/m 2 , b) 83 dB , c) 282 m ) 3. Un tono puro de 1000 Hz tiene un nivel de intensidad de 30 dB . Determinar cu´ antos tonos igual a ´ este deben sonar simult´ aneamente para producir un nivel que sea el doble del producido por un solo tono. ( R: 1000 ) INTERFERENCIA 4. Dos ondas se desplazan en la misma direcci´on en una cuerda e interfieren entre s´ ı.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern