What frequency did you hear 3 seconds after police pass?

[ThePhysicsXV]

Homework Statement

The police was headed to a felony and passed you so you stopped. What frequency did you hear 3 second after the police passed you?

Homework Equations

f=1/T

The Attempt at a Solution

f=1/3
f=.33Hz

 

[berkeman]

Homework Statement

The police was headed to a felony and passed you so you stopped. What frequency did you hear 3 second after the police passed you?

Homework Equations

f=1/T

The Attempt at a Solution

f=1/3
f=.33Hz

No.

What is the frequency of the siren? Do you only hear it as it approaches (so Doppler shifted to a higher frequency than its no-movement frequency)? Or do you know what its non-moving base frequency is?

What is the equation for the Doppler shift in frequency versus relevant velocities of the source and listener? You are missing so much from this post. Please fix it...

 

[ThePhysicsXV]

No.

What is the frequency of the siren? Do you only hear it as it approaches (so Doppler shifted to a higher frequency than its no-movement frequency)? Or do you know what its non-moving base frequency is?

What is the equation for the Doppler shift in frequency versus relevant velocities of the source and listener? You are missing so much from this post. Please fix it...

So what's the correct formula?

 

[ThePhysicsXV]

No.

What is the frequency of the siren? Do you only hear it as it approaches (so Doppler shifted to a higher frequency than its no-movement frequency)? Or do you know what its non-moving base frequency is?

What is the equation for the Doppler shift in frequency versus relevant velocities of the source and listener? You are missing so much from this post. Please fix it...

Frequency of Siren is 988Hz

 

[berkeman]

So what's the correct formula?

You are the student, so you must tell us that.

 

[berkeman]

Frequency of Siren is 988Hz

That does not fully answer my question. That is the frequency that is heard how? When the car is approaching, or when it is stopped and you are stopped. Please post the full text of the question.

 

[ThePhysicsXV]

Forget this question, can you please delete this thread?

 

[berkeman]

Forget this question, can you please delete this thread?

No, we don't delete threads with replies here. Please show more effort in your future schoolwork threads here. That's in our rules. I'll cut you a break on this thread.