Two Identical Loudspeakers That Are 5

question 29

Multiple Choice

Two identical loudspeakers that are 5.00 m apart and face toward each other are driven in phase by the same oscillator at a frequency of 875 Hz. The speed of sound in the room is 344 m/s. If you start out standing midway between the speakers, find the shortest distance you can walk toward either speaker in order to hear a minimum of sound.

• A) 0.0983 m
• B) 0.197 m
• C) 0.295 m
• D) 0.393 m
• E) 0.590 m

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Definitions:

Accumulated Depreciation

The cumulative sum of depreciation expense allocated for a physical asset from the time it was first used.

Disposal

The elimination of an asset from the balance sheet, typically due to sale, loss, or obsolescence.

Machinery

Physical assets used in a business operation to manufacture or produce goods.

Gain on Disposal

Gain on disposal refers to the financial profit made from selling an asset for more than its carrying amount on the books.