In Architectural Acoustics, We Distinguish Between Airborne Sound and Structure-

question 4

Essay

In architectural acoustics, we distinguish between airborne sound and structure- borne sound. Place the followin sounds in one of the above two categories.
Sound from the speaker in an auditorium
Sound from hailstorm on an auditorium roof
Sound from the footsteps of a person walking on the floor
Sound from someone knocking on an entry door of a house Sound from the orchestra in a concert hall

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Definitions:

Firm

An organization that produces goods or provides services, usually with the aim of making a profit.

Economic Profit

The difference between the total revenue generated by a business and the total costs, including both explicit and implicit costs.

Minimum Return

The lowest expected or required return on an investment over a specified period.

Long Run

A period of time in which all factors of production and costs are variable, allowing for all adjustments to take place in the analysis of economic conditions.