# Physics

posted by .

Physics Question
Finally, your friend's twin engine jet airplane lands. As it stands on the runway, you hear the sound of the engines getting louder and softer, rhythmically once every 2.3 s. The average frequency you hear is 3650 Hz. What are the differences between the average frequency and the individual frequencies of the sounds from each engine?
frequency you hear is 3650 Hz. What are the differences between the average frequency and the individual frequencies of the sounds from each engine?

flow - favg = ______ Hz

HELP: The rhythmic getting louder and softer that you hear is the phenomenon of beats.

HELP: What is the beat frequency in this case? What is the relationship between the beat frequency and the two frequencies that generate the beats?

HELP: What is the relationship between those two frequencies and the average frequency you hear?

fhigh - favg = ______ Hz

I've tried a couple of things but I'm just stumped! Thanks for the help.

• Physics -

That is definitely not the answer

## Similar Questions

1. ### physics help

Imagine you are in an open field where two loudspeakers are set up and connected to the same amplifier so that they emit sound waves in phase at 688 Hz. Take the speed of sound in air to be 344 m/s. If you are 3.00m from speaker A …
2. ### College Physics

Finally, your friend's twin engine jet airplane lands. As it stands on the runway, you hear the sound of the engines getting louder and softer, rhythmically once every 2.3 s. The average frequency you hear is 3650 Hz. What are the …
3. ### Physics

Imagine you are in an open field where two loudspeakers are set up and connected to the same amplifier so that they emit sound waves in phase at 688 Hz. Take the speed of sound in air to be 344 m/s. If you are 3.00 m from speaker A …
4. ### physics

The siren on an ambulance is emitting a sound whose frequency is 2421 Hz. The speed of sound is 343 m/s. (a) If the ambulance is stationary and you (the "observer") are sitting in a parked car, what are the wavelength and the frequency …
5. ### Physics Experiment

In the experiment Standing Waves,if you continue to lwer the water level after recording l(m) at the first sound resonance at fixed tuning fork frequency, you will hear the sound again but sound gets louder (second resonance). At this …
6. ### physics

if you continue to lower the water level after recording length at the first sound resonance at fixed tuning fork frequency, you will hear the sound again but the sound gets louder(seond resonance). at this point, by what factor has …
7. ### Physics

A jet engine produces a sound level of 150 dB from a distance of 30 m (assuming spherical dissipation). The average human ear has an effective area of 12.0 cm2. What is the sound level at 60 m from a jet engine is?
8. ### physics

An airplane traveling at v = 163 m/s emits a sound of frequency 1730 Hz. At what frequency does a stationary listener hear the sound as the plane approaches?
9. ### physics

An airplane traveling at v = 152 m/s emits a sound of frequency 1850 Hz. At what frequency does a stationary listener hear the sound as the plane approaches?
10. ### Science - physics

a jet airplane lands with a speed of 122 m/s and can accelerate uniformly at a max rate of - 6.2m/s2 as it comes to a rest. can this airplane land in 1.0 km runway

More Similar Questions