Two People Are Talking at a Distance of 3

question 42

Multiple Choice

Two people are talking at a distance of 3.0 m from where you are and you measure the sound intensity as 1.1 × 10^-7 W/m².Another student is 4.0 m away from the talkers.What sound intensity does the other student measure? Assume that the sound spreads out uniformly and undergoes no significant reflections or absorption.

• A) 6.2 × 10^-8 W/m²
• B) 1.5 × 10^-7 W/m²
• C) 8.3 × 10^-8 W/m²
• D) 7.8 × 10^-7 W/m²
• E) 2.5 × 10^-8 W/m²

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Definitions:

Direct Labor Hours

The total number of work hours spent by employees who directly manufacture or produce goods.

Predetermined Overhead Rate

An estimate used to allocate overhead costs to products or job orders, calculated before the costs are incurred.

Finished Goods

Items that are finished with the production phase but are still awaiting sale or delivery to consumers.

Cost of Goods Sold

The direct costs attributable to the production of goods sold by a company, including materials and labor costs.