| A | B |
|---|
| What is the intensity level of a sound whose intensity is 2.0 x 10^-6 W/m^2? | ??? |
| What is the intensity level of a sound whose intensity is 1 x 10^-8 W/m^2? | ??? |
| The predominant frequency of a certain fire truck is 750 Hz when at rest. What frequency do you detect if you move with a speed of 28 m/s (a) toward the fire truck and (b) away from the fire truck? | ??? |
| An ambulance siren has a predominant frequency of 920 Hz. What frequency will you hear if you are rest and the ambulance moves at 30 m/s (a) toward you and (b) away from you? | ??? |
| Determine the length of an open organ pipe that emits middle C (262 Hz) when the temperature is 21 degrees Celsius. | ??? |
| An organ pipe is 112 cm long. What are the fundamental and first three audible overtones if the pipe is (a) closed at one end and (b) open at both ends? | ??? |
| What will be the beat frequency if middle C (262 Hz) and C# (277 Hz) are played together? | ??? |
| A beat frequency of 2 Hz is detected when two tuning forks are struck at the same time. If the frequency of one fork is 242 Hz, determine the possible frequencies of the second tuning fork. | ??? |
