12_InstSolManual_PDF_Part16

12_InstSolManual_PDF_Part16 - ure 12.61a Figure 12.61 f L 5...

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

View Full Document Right Arrow Icon
Now consider the truck as a source, with and the fire engine driver as the listener (Figure 12.60b). The objects are getting closer together so the frequency is increased. (b) The driver detects a frequency of 2120 Hz and the waves returning from the truck move past him at so the wavelength he measures is The wavelength of waves emitted by the fire engine when it is stationary is 12.61. Set Up: To treat the reflection of the waves use Problem-Solving Strategy 3 in Section 12.12. Solve: (a) Since the frequency is increased the moving car must be approaching the police car. Let be the speed of the moving car. The speed of the police car is zero. First consider the moving car as the listener, as shown in Fig-
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ure 12.61a: Figure 12.61 f L 5 1 v 1 v L v 1 v S 2 f S 5 1 v 1 v c v 2 1 1200 Hz 2 ( a ) S L v c f S 5 1200 Hz ( b ) L v p 5 v p 5 ( c ) S v p f S 5 1200 Hz ( d ) v p L S f S 5 1300 Hz 1 1 1 1 f S 5 1 1200 Hz 2 1 v 1 v c 2 v S v c L v c v c v p v c f L 5 1 v 1 v L v 1 v S 2 f S . l 5 344 m / s 2000 Hz 5 0.172 m. l 5 344 m / s 1 30 m / s 2120 Hz 5 0.176 m. 344 m / s 1 30.0 m / s, f L 5 1 v 1 v L v 1 v S 2 f S 5 1 344 m / s 1 30.0 m / s 344 m / s 1 20.0 m / s 2 1 2064 Hz 2 5 2120 Hz f S 5 2064 Hz, 12-16 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