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.