Mathematics, 28.02.2020 19:31 bree2837
The Doppler effect causes a sound moving towards you to sound higher pitched and a sound moving away from you to sound lower pitched, like observed in listening to the car horn in the video. The equation for this is f = ( c c + v ) f 0 , where f is the observed frequency (pitch) of the sound, in Hertz c is the speed of sound, about 761 miles per hour, v is the speed of the sound source, in this case the car, in miles per hour f0 is the frequency of the sound when stationary Using a spectrum analyzer, we could determine the observed frequency when the car was driving away was 236 Hz and the stationary frequency was 253 Hz. Use this information and the equation to estimate the speed of the car in miles/hour, to 1 decimal place.
Answers: 2
Mathematics, 21.06.2019 14:30
Which interval for the graphed function contains the local maximum? [–3, –2] [–2, 0] [0, 2] [2, 4]
Answers: 2
Mathematics, 21.06.2019 15:00
There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.
Answers: 3
Mathematics, 21.06.2019 21:00
Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]
Answers: 1
The Doppler effect causes a sound moving towards you to sound higher pitched and a sound moving away...
Social Studies, 04.06.2021 23:20
Mathematics, 04.06.2021 23:20
Social Studies, 04.06.2021 23:20
Mathematics, 04.06.2021 23:20
Mathematics, 04.06.2021 23:20
Business, 04.06.2021 23:20
Mathematics, 04.06.2021 23:20
Mathematics, 04.06.2021 23:20
Mathematics, 04.06.2021 23:20
Mathematics, 04.06.2021 23:20
Mathematics, 04.06.2021 23:20
Mathematics, 04.06.2021 23:20
History, 04.06.2021 23:20
Physics, 04.06.2021 23:20