A Barking Dog Delivers About 1

question 14

Multiple Choice

A barking dog delivers about 1.0 mW of power,which is assumed to be uniformly distributed in all directions.What is the intensity level in decibels at a distance 5.00 m from the dog? The threshold of human hearing is 1.0 × 10^-12 W/m².

• A)61 dB
• B)63 dB
• C)65 dB
• D)68 dB

---

Definitions:

Gross Margin

A company's revenue minus its cost of goods sold, divided by revenue, expressed as a percentage, indicating the percentage of revenue that exceeds the cost of goods sold.

Inventory

Inventory comprises the goods and materials a business holds for the purpose of resale or production.

Consolidated Net Income

The total earnings of a corporation, after taxes and expenses, including its subsidiaries, presented in a single financial statement.

Comprehensive Income

A measure of all changes in equity during a period except those resulting from investments by and distributions to owners.