Standing at a crosswalk, you hear a frequency of 540 hz from the siren of an approaching ambulance. after the ambulance passes, the observed frequency of the siren is 446 hz. determine the ambulance's speed from these observations. (take the speed of sound to be 343 m/s.)
Answers: 2
.
be the speed of sound and 
be the speed of ambulance.Then according to Doppler effect:
= 540 Hz 
= 446 Hz 
and solving the above two equations by eliminating 
Other questions on the subject: Physics
Physics, 22.06.2019 05:30, alexportillo859
Blank liquids and gases exert a buoyant force on objects placed in them
Answers: 3
Physics, 22.06.2019 14:30, Scourge927
Multiply or divide to make this english distance conversion. 174 inches = feet (14.5, 58, 2,088, 23)
Answers: 2
Physics, 23.06.2019 02:00, Rosemckinney2351
Determine the time it takes for a satellite to orbit the earth in a circular "near-earth" orbit. the definition of "near-earth" orbit is one which is at a height above the surface of the earth which is small compared to the radius of the earth, so that you may take the acceleration due to gravity as essentially the same as that on the surface. does your result depend on the mass of the satellite?
Answers: 3
Do you know the correct answer?
Standing at a crosswalk, you hear a frequency of 540 hz from the siren of an approaching ambulance....
Questions in other subjects:
World Languages, 17.01.2021 02:30
Social Studies, 17.01.2021 02:30
Biology, 17.01.2021 02:30
Mathematics, 17.01.2021 02:30
Biology, 17.01.2021 02:30
