The Three Lowest Resonate Frequencies of a System Are 50

question 45

Multiple Choice

The three lowest resonate frequencies of a system are 50 Hz,150 Hz,and 250 Hz.The system could be

• A) a tube of air closed at both ends.
• B) a tube of air open at one end.
• C) a tube of air open at both ends.
• D) a vibrating string with fixed ends.

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Definitions:

Net Profit Margin

A financial ratio that shows the percentage of net income to revenue, indicating the efficiency at which a company converts sales into net profit.

Gross Margin

The difference between the sales revenue and the cost of goods sold, indicating the profitability of a company's core business activities.

Times Interest Earned

A financial ratio that measures a company's ability to meet its debt obligations based on its earnings before interest and taxes (EBIT).

Debt-To-Equity Ratio

A financial ratio that measures the degree to which a company is financing its operations through debt versus wholly owned funds.