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# Exam 5 - Exam 5 Physics PointsAwarded PointsMissed...

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Exam 5 Physics Points Awarded 50.00 Points Missed 0.00 Percentage 100.0% . / 1 A car moving at 35 m s approaches a stationary whistle that emits a 220 Hz . / . sound The speed of sound is 343 m s What is the frequency of sound heard by the driver of the car? . a 198 Hz . b 340 Hz . c 282 Hz . d 220 Hz . e 245 Hz :// . . /~ / / - - . http www saintjoe edu jcoy physics122 Exam1 W2007 sol pdf Question 3 . Answer 242 4 Hz 2009 MC Key Practice Final Question 30 Answer 242 Hz . . 2 A speaker is designed for wide dispersion for a high frequency sound What should the diameter of the circular opening be for a speaker where the desired ° diffraction angle is 11 and a 9100 Hz sound is generated? The speed of sound is / . 343 m s . a . ; = - . = - . / . = . ° 0 75 m θ sin 11 22vfD sin 11 22343 m s9100 Hz0 75 m 3 515 . b . ; = - . = - . / . = 0 25 m θ sin 11 22vfD sin 11 22343 m s9100 Hz0 25 m . ° 10 599 . c . ; = - . = - . / . = . ° 0 048 m θ sin 11 22vfD sin 11 22343 m s9100 Hz0 048 m 73 34 . d . ; = - . = - . / . = . ° 0 24 m θ sin 11 22vfD sin 11 22343 m s9100 Hz0 24 m 11 05 . e . ; = - . = - . / . = 0 039 m θ sin 11 22vfD sin 11 22343 m s9100 Hz0 039 m : Text page 513 example 3 = = / = . - ; = = °= . - λ vf 343 m s9100 Hz 3 769 x 10 2 sinθ λD sin11 3 769 x 10 2D . . . 3 Pipe A is 0 50 m long and open at both ends Pipe B is open at one end and . closed at the other end Determine the length of pipe B so that it has the same . fundamental frequency as A . a . 0 75 m . b . 0 25 m . c . 2 0 m . d . 0 50 m

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. e . 1 0 m :// . . / / / % % . http www austincc edu mmcgraw files_1401 Review 20Final 20Exam pdf 41. Pipe A is 0.50 m long and open at both ends. Pipe B is open at one end and closed at the other end. Determine the length of B so that it has the same fundamental frequency as A . (a) 0.25 m (c) 0.75 m (e) 2.0 m (b) 0.50 m (d) 1.0 m . / 4 A guitar string produces 4 beats s when sounded with a 250 Hz tuning fork and . 9 beats per second when sounded with a 255 Hz tuning fork What is the vibrational frequency of the string? . a 259 Hz . b 263 Hz . c 246 Hz . d 254 Hz . e 240 Hz :// . / . . / / . http sprott phys ics wisc edu phys103 finalf00 pdf Question 8 - / = , - / = 250 Hz 4 beats s 246 Hz 255 Hz 9 beats s 246 Hz http://www.cramster.com/answers-apr-09/physics/sound-and-music-a-guitar-string-produces-4-beatss-when-sounded-with-a-250_552503.aspx Response Details: 250 - x = 4 => x = 246 255 - x = 9 => x = 246 answer is option c. 246 Hz http://www.austincc.edu/mmcgraw/files_1401/Review%20Final%20Exam.pdf 16. A guitar string produces 4 beats/s when sounded with a 250 Hz tuning fork and 9 beats per second when sounded with a 255 Hz tuning fork. What is the vibrational frequency of the string? (a) 240 Hz (c) 254 Hz (e) 263 Hz
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Exam 5 - Exam 5 Physics PointsAwarded PointsMissed...

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