One of the Harmonics of a Column of Air in a Tube

question 526

Multiple Choice

One of the harmonics of a column of air in a tube that is open at one end and closed at the other has a frequency of 448 Hz, and the next higher harmonic has a frequency of 576 Hz. How long is
The tube? The speed of sound in air is 343 m/s.

• A) 0.335 m
• B) 2.68 m
• C) 0.670 m
• D) 1.00 m
• E) 1.34 m

---

Definitions:

Current Ratio

A liquidity ratio that measures a company's ability to cover its short-term obligations with its current assets.

Du Pont Equation

A formula that breaks down the Return on Equity (ROE) into three key components: profit margin, asset turnover, and financial leverage, allowing for a deeper analysis of what drives a company's ROE.

Inventory Turnover

A ratio showing how many times a company's inventory is sold and replaced over a period, indicating the efficiency of inventory management.

Gross Margin

A financial metric indicating the difference between revenue and the cost of goods sold (COGS), expressed as a percentage of revenue, highlighting the efficiency of a company in managing production costs relative to sales.