what is your speed if you detect a frequency of 490 Hz?Homework Answers
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A car is emmiting sound of frequency 520 Hz. You are on a
motorcylce, traveling directly...
You are standing at rest in the middle of a highwa. A car is traveling directly...
You are standing at rest in the middle of a highwa. A car is traveling directly toward you at a speed of 30.0 m/s. The car's horn is emitting sound waves with a frequency of 440 Hz. What is the frequency heard by you? The answer is 482 Hz but I am confused on how to get to the answer! Thank you in advance!
A siren, attached to a parked car, emits a sound with frequency 960 Hz. You are...
A siren, attached to a parked car, emits a sound with frequency 960 Hz. You are driving in your car, either straight towards or straight away from the parked car, and hear a frequency of 1069 Hz. Are you moving towards or away from the car? towards away How fast must you be moving? (Give your answer rounded to two sigfigs.)40
Two cars traveling with the same speed move directly away from one another. One car sounds...
Two cars traveling with the same speed move directly away from one another. One car sounds a horn whose frequency is 416 Hz and a person in the other car hears a frequency of 383 Hz, Part A What is the speed of the cars? IVO AQ R O a ? 14.7 O Review your calculations; you may have made a rounding error or used the wrong number of significant figures. No credit lost. Try again. Submit Previous Answers Request...
The security alarm on a parked car goes off and produces a frequency of 1010 Hz....
The security alarm on a parked car goes off and produces a frequency of 1010 Hz. The speed of sound is 343 m/s. As you drive toward this parked car, pass it, and drive away, you observe the frequency to change by 76.0 Hz. At what speed are you driving?
The security alarm on a parked car goes off and produces a frequency of 830 Hz....
The security alarm on a parked car goes off and produces a frequency of 830 Hz. The speed of sound is 343 m/s. As you drive toward this parked car, pass it, and drive away, you observe the frequency to change by 56.1 Hz. At what speed are you driving?
3) A sports car is speeding toward you down the road. The car is traveling at...
3) A sports car is speeding toward you down the road. The car is traveling at 25.2 meters per second and the exhaust produces sound waves with a frequency of 845 Hz. Find the observed frequency as the car is driving towards you and when the car is driving away from you. How do they compare? Would you notice the difference in the sounds? Use 343 m/s for the speed of sound.
The siren on an ambulance is emitting a sound whose frequency is 2850 Hz. The speed...
The siren on an ambulance is emitting a sound whose frequency is 2850 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 of the sound you hear? (b) Suppose that the ambulance is moving toward you at a speed of 26.6 m/s. Determine the wavelength and the frequency of the sound you hear. (c) If the ambulance is...
A state highway patrol car radar unit uses a frequency of 9.50×109 Hz . What frequency...
A state highway patrol car radar unit uses a frequency of 9.50×109 Hz . What frequency difference will the unit detect from a car approaching a parked patrol car with a speed of 40.0 m/s ?
4. Your ears detect a sound wave with a frequency of 315 Hz and a sound...
4. Your ears detect a sound wave with a frequency of 315 Hz and a sound intensity level of 80 dB. It originated in a vibrating string with a length of 1.9 meters. A) Waves can be longitudinal or transverse. What is the difference between these two kinds of waves? B) This question has one longitudinal wave and one transverse wave. Identify them. C) Recall that the sound you hear from a string is the fundamental frequency, which has a...
A speaker on a car produces a 150 Hz sound wave when parked. The car starts...
A speaker on a car produces a 150 Hz sound wave when parked. The car starts to drive toward a pedestrian standing by the road, and the pedestrian hears the sound shift to 160 Hz when the car starts to drive toward them. The car passes the pedestrian and drives away from them. What frequency would the pedestrian hear as the car drives away? Assume the speaker continuously produces the same frequency, the car maintains the same speed, and the...
A siren, attached to a parked car, emits a sound with frequency 960 Hz. You are driving in your car, either straight towards or straight away from the parked car, and hear a frequency of 1069 Hz. Are you moving towards or away from the car? towards away How fast must you be moving? (Give your answer rounded to two sigfigs.)40
Two cars traveling with the same speed move directly away from one another. One car sounds a horn whose frequency is 416 Hz and a person in the other car hears a frequency of 383 Hz, Part A What is the speed of the cars? IVO AQ R O a ? 14.7 O Review your calculations; you may have made a rounding error or used the wrong number of significant figures. No credit lost. Try again. Submit Previous Answers Request...
3) A sports car is speeding toward you down the road. The car is traveling at 25.2 meters per second and the exhaust produces sound waves with a frequency of 845 Hz. Find the observed frequency as the car is driving towards you and when the car is driving away from you. How do they compare? Would you notice the difference in the sounds? Use 343 m/s for the speed of sound.
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