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Advanced Physics
Consider a situation where a source is emitting a painfully high frequency sound and you want to reduce the  observed frequency of the sound by a proportion p, where 0 ≤ ? ≤ 1. a. With what speed (as a function of the speed of sound, v) must an observer move away if the source is stationary to hear the sound with the desired reduced frequency? a) ?? = _____________________ b. With what speed (as a function of the speed of sound, v) must the source must move away from a stationary  observer for the observer to hear the sound with the desired reduced frequency? b) ?? = _____________________ c. Which is more effective for reducing the frequency of the observed sound: having the observer move or having  the source move? (Be sure to prove your answer mathematically.) c) Having the __________________________________________ move is more effective

Consider a situation where a source is emitting a painfully high frequency sound and you want to reduce the  observed frequency of the sound by a proportion p, where 0 ≤ ? ≤ 1. a. With what speed (as a function of the speed of sound, v) must an observer move away if the source is stationary to hear the sound with the desired reduced frequency? a) ?? = _____________________ b. With what speed (as a function of the speed of sound, v) must the source must move away from a stationary  observer for the observer to hear the sound with the desired reduced frequency? b) ?? = _____________________ c. Which is more effective for reducing the frequency of the observed sound: having the observer move or having  the source move? (Be sure to prove your answer mathematically.) c) Having the __________________________________________ move is more effective

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Also in 2-C show your work mathematically without calculators)

Consider a situation where a source is emitting a painfully high frequency sound and you want to reduce the 
observed frequency of the sound by a proportion p, where 0 ≤ ? ≤ 1.
a. With what speed (as a function of the speed of sound, v) must an observer move away if the source is stationary
to hear the sound with the desired reduced frequency?
a) ?? = _____________________

b. With what speed (as a function of the speed of sound, v) must the source must move away from a stationary 
observer for the observer to hear the sound with the desired reduced frequency?
b) ?? = _____________________
c. Which is more effective for reducing the frequency of the observed sound: having the observer move or having 
the source move? (Be sure to prove your answer mathematically.)
c) Having the __________________________________________ move is more effective

b. With what speed (as a function of the speed of sound, v) must the source must move away from a stationary observer for the observer to hear the sound with the desired reduced frequency? b) vs = Which is more effective for reducing the frequency of the observed sound: having the observer move or having the source move? (Be sure to prove your answer mathematically.) C. c) Having the move is more effective.
Transcribed Image Text:b. With what speed (as a function of the speed of sound, v) must the source must move away from a stationary observer for the observer to hear the sound with the desired reduced frequency? b) vs = Which is more effective for reducing the frequency of the observed sound: having the observer move or having the source move? (Be sure to prove your answer mathematically.) C. c) Having the move is more effective.
2. Consider a situation where a source is emitting a painfully high frequency sound and you want to reduce the observed frequency of the sound by a proportion p, where 0 < p< 1. With what speed (as a function of the speed of sound, v) must an observer move away if the source is stationary to hear the sound with the desired reduced frequency? а. a) v. =,
Transcribed Image Text:2. Consider a situation where a source is emitting a painfully high frequency sound and you want to reduce the observed frequency of the sound by a proportion p, where 0 < p< 1. With what speed (as a function of the speed of sound, v) must an observer move away if the source is stationary to hear the sound with the desired reduced frequency? а. a) v. =,
Expert Solution
Step 1

Given,

The speed of sound is v

and the observed frequency is p time the original frequency where 0<p<1.

 

a)

When the observer is moving away with a speed of vo.

Using Doppler's effect for this case,

f=fov-vov

Then observer speed will be

vo=v1-ffo

putting the values

vo=v1-pfofovo=v1-p

Hence, the speed of the observer (moving away) is vo=v1-p.

 

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