Refer to the following information for the next eight questions.
Describe the requested waveforms using "A" for an antinode and "N" for a node. For example, the fundamental in an open pipe would be expressed as "A N A" and the fundamental in a closed pipe would be expressed as "N A." Practice on your papers sketching the waveforms so you can become familiar with their constructions.
Open Pipe: 
Closed Pipe: 
Refer to the following information for the next three questions.
Several open pipes are located in a room whose temperature is 26ºC.
Refer to the following information for the next three questions.
A pipe has 110 hz, 220 hz, and 330 hz as its first three natural frequencies.
Refer to the following information for the next three questions.
A closed pipe is 0.60 meters long. The air temperature is 20ºC.