Insights Blog
-- Browse All Articles --
Physics Articles
Physics Tutorials
Physics Guides
Physics FAQ
Math Articles
Math Tutorials
Math Guides
Math FAQ
Education Articles
Education Guides
Bio/Chem Articles
Technology Guides
Computer Science Tutorials
Forums
Intro Physics Homework Help
Advanced Physics Homework Help
Precalculus Homework Help
Calculus Homework Help
Bio/Chem Homework Help
Engineering Homework Help
Trending
Featured Threads
Log in
Register
What's new
Search
Search
Search titles only
By:
Intro Physics Homework Help
Advanced Physics Homework Help
Precalculus Homework Help
Calculus Homework Help
Bio/Chem Homework Help
Engineering Homework Help
Menu
Log in
Register
Navigation
More options
Contact us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Homework Help
Introductory Physics Homework Help
How Fast is the Ambulance Traveling in the Doppler Effect Problem?
Reply to thread
Message
[QUOTE="booj1204, post: 3124283, member: 307191"] [h2]Homework Statement [/h2] You are traveling north of wayne rd at 20.0m/s, when you notice an ambulance in the distance approaching you at a high rate of speed. Using an iPhone app, you measure the siren's frequency to be 1.427 kHz. From previous experience you know that the ambulance siren emits a tone of 1.200kHz. the speed of sound in air is 343m/s. a) How fast is the ambulance traveling south on wayne? b) Assuming that your have stopped while the ambulance passes you, what do you measure for the frequency of the siren as the ambulance speeds away from you? [h2]Homework Equations[/h2] a) (v0/v) = 1-(vs/v)(f0/fs)-1 b) f0=fs(1/(1+vs/v) [h2]The Attempt at a Solution[/h2] a) (v0/v) = 1-(vs/v)(f0/fs)-1 => (1-(20.0/343))(.1200 Hz/.1427 Hz) - 1 = .208 v0=v(0..208) = 343 m/s (0.208) = 71. 38m/s b) f0=fs(1/(1+vs/v) => .1427 (1/1+20.0/343) = 0.134 Hz I would really appreciate if someone would let me know if my solution is correct. Thanks! [/QUOTE]
Insert quotes…
Post reply
Forums
Homework Help
Introductory Physics Homework Help
How Fast is the Ambulance Traveling in the Doppler Effect Problem?
Back
Top