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Question 21 Suppose you set your watch by the sound of the noon whistle from a factory 3km away. Compared to the correct time, y

Question 21 Suppose you set your watch by the sound of the noon whistle from a factory 3km away. Compared to the correct time, your watch will be behind Not yet answered Marked out of 1.00 Select one: O True P Flag question O False

Question 21 Suppose you set your watch by the sound of the noon whistle from a factory 3km away. Compared to the correct time, your watch will be behind Not yet answered Marked out of 1.00 Select one: O True P Flag question O False

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2. [0/7 Points] DETAILS PREVIOUS ANSWERS SERCP11 14.3.P.003. 1/10 Submissions Used MY NOTES ASK YOUR TEACHER On a hot summer day, the temperature of air in Arizona reaches 119°F. What is the speed of sound in air at this temperature? (The speed of sound at

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2. [0/7 Points] DETAILS PREVIOUS ANSWERS SERCP11 14.3.P.003. 1/10 Submissions Used MY NOTES ASK YOUR TEACHER On a hot summer day, the temperature of air in Arizona reaches 119°F. What is the speed of sound in air at this temperature? (The speed of sound at 0°C is 331 m/s. Use the conversion 0°C = 273 K as necessary.) m/s Need Help? Read It

Questions 8 to 12 pertain to three different sounds: Sound A, when propagating through air (sound speed = 350 m/s), has a wavelength of 3.5 meters. Sound B, when propagating through water (sound speed =1400 m/s), has a wavelength of 28 meters, and sound C,

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Sound Waves Solutions

Questions 8 to 12 pertain to three different sounds: Sound A, when propagating through air (sound speed = 350 m/s), has a wavelength of 3.5 meters. Sound B, when propagating through water (sound speed =1400 m/s), has a wavelength of 28 meters, and sound C, when propagating through iron (sound speed = 4900 m/s), has a wavelength of 70 meters. 8. The frequency of sound A must be (a) 50 Hz. (b) 70 Hz. (c) 80 Hz. (d) 100 Hz. (e) 120 Hz. 9. The frequency of sound B must be (a) 50 Hz. (b) 70 Hz. (C) 80 Hz. (d) 100 Hz. (e) 120 Hz. 10. The frequency of sound C must be (a) 50 Hz. (b) 70 Hz. (c) 80 Hz. (d) 100 Hz. (e) 120 Hz. 2 11. Which of the three sounds would be perceived to have the highest pitch? (a) Sound A. (b) Sound B. (c) Sound C. (d) All three have the same pitch. 12. Which of the three sounds would be perceived to have the lowest pitch? (a) Sound A. (b) Sound B. (c) Sound C. (d) All three have the same pitch.

Part A A railroad train is traveling at 30.0 m/s in still air. The frequency of the note emitted by the train whistle is 352 Hz. What frequency is heard by a passenger on a train moving in the opposite direction to the first at 18.0 m/s and approaching the

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Sound Waves Solutions

Part A A railroad train is traveling at 30.0 m/s in still air. The frequency of the note emitted by the train whistle is 352 Hz. What frequency is heard by a passenger on a train moving in the opposite direction to the first at 18.0 m/s and approaching the first? Express your answer with the appropriate units. H ? f= Value Units