The Speed of Sound in Air Is Approximately $340 ~ { \mathrm { m } } / \mathrm { s } \text {. }$

question 21

Essay

The speed of sound in air is approximately $340 ~ { \mathrm { m } } / \mathrm { s } \text {. }$ .The speed of light in air is approximately $3 { \times } 10 ^ { 8 } \mathrm {~m} / \mathrm { s }$ .If a lightning strike occurs 3 km away, how much time elapses before you hear the
thunder?

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Definitions:

Direct Materials

Raw materials that can be directly identified and allocated to the production of specific goods or services.

Total Cost

The complete cost of production, including fixed and variable costs, for manufacturing a product or providing a service.

Direct Labor

Expenses of employees directly involved in the production of goods or services, such as wages for assembly line workers.

Per-unit Cost

The cost associated with producing or acquiring a single unit of product, including both fixed and variable costs.