12_InstSolManual_PDF_Part24 - car moving away The situation...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
12.81. Set Up: The greatest frequency shift from the Doppler effect occurs when one speaker is moving away and one is moving toward the person. The speakers have speed where with the positive direction from the listener to the source. Solve: (a) and Speaker A , moving toward the listener: Speaker B , moving toward the listener: (b) A person can her individual beats only up to about 7 Hz and this beat frequency is much larger than that. Reflect: As the turntable rotates faster the beat frequency at this position of the speakers increases. 12.82. Set Up: Let be the speed of the car. Assume the car is traveling to the right. The direction from the listener to the source is positive. When the source is approaching, the frequency is increased and when the source is moving away, the frequency is decreased. Solve: (a) (b) car approaching: The situation is sketched in Figure 12.82a. Figure 12.82
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: car moving away: The situation is sketched in Figure 12.82b. and v car 5 0.059 v 2.059 5 0.0287 v 5 1 0.0287 21 344 m / s 2 5 9.9 m / s 1.059 v 2 1.059 v car 5 v 1 v car f L1 f L2 5 1.059 5 1 v v 2 v car 2 f S / 1 v v 1 v car 2 f S 5 1 v v 2 v car 21 v 1 v car v 2 5 v 1 v car v 2 v car f L2 5 1 v v 1 v car 2 f S v S 5 1 v car . ( b ) L v L 5 f L1 L v L 5 f L2 ( a ) 1 1 S v car f S S v car f S f L1 5 1 v v 2 v car 2 f S . v S 5 2 v car . 2 1 / 12 5 1.059 v car v L 5 0. f beat 5 f 1 2 f 2 5 1119 Hz 2 1081 Hz 5 38 Hz f LB 5 1 v v 1 5.89 m / s 2 1 1100 Hz 2 5 1081 Hz f LA 5 1 v v 2 5.89 m / s 2 1 1100 Hz 2 5 1119 Hz. v 5 1 0.75 m 21 7.85 rad / s 2 5 5.89 m v 5 1 75 rpm 2 1 2 p rad 1 rev 21 1 min 60 s 2 5 7.85 rad / s f 5 v l 5 344 m / s 0.313 m 5 1100 Hz. v 5 344 m / s f L 5 1 v 1 v L v 1 v S 2 f S , r 5 0.75 m. v 5 r v , 12-24 Chapter 12...
View Full 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