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A tuning fork vibrates 440.0 times a second, producing sound waves with a wavelength of 78.0 cm. What is the velocity of these waves? |
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2 | |
The distance between the center of a condensation and the center of an adjacent rarefaction is 65.23 cm. If the frequency is 256.0 Hz, how fast are these waves moving? |
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A warning buoy is observed to rise every 5.0 s as crests of waves pass by it. (a) What is the period of these waves? (b) What is the frequency? |
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4 | |
Sound from the siren of an emergency vehicle has a frequency of 750.0 Hz and moves with a velocity of 343.0 m/s. What is the distance from one condensation to the next? |
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5 | |
The following sound waves have what velocity?- 20.0 Hz, l of 17.15 m
- 200.0 Hz, l of 1.72 m
- 2,000.0 Hz, l of 17.15 cm
- 20,000.0 Hz, l of 1.72 cm
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6 | |
How much time is required for a sound to travel 1 mile (5,280.0 ft) if the air temperature is:- 0.0°C
- 20.0°C
- 40.0°C
- 80.0°C
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A ship at sea sounds a whistle blast, and an echo returns from the coastal land 10.0 s later. How many km is it to the coastal land if the air temperature is 10.0°C? |
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8 | |
How many seconds will elapse between seeing lightning and hearing the thunder if the lightning strikes 1 mile (5,280 ft) away and the air temperature is 90.0°F? |
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9 | |
A 440.0 Hz sound resonates with a 19.5 cm air column in a closed tube. What was the speed of sound in the tube? |
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10 | |
A 600.0 Hz sound has a velocity of 1,087.0 ft/s in the air and a velocity of 4,920.0 ft/s in water. Find the wavelength of this sound (a) in the air, (b) in the water. |
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11 | |
What is the shortest length of an air column in which a 440.0 Hz tuning fork can produce resonance at 20.0°C? |
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12 | |
The air temperature increases from 20.0°C to 25.0°C. What effect will this have on the fundamental frequency produced by a 70.0 cm closed organ pipe? |
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2002 McGraw-Hill Higher Education