A Crying Baby Emits Sound with an Intensity Of $8.0 \times 10 ^ { - 8 } \mathrm {~W} / \mathrm { m } ^ { 2 }$

question 9

Multiple Choice

A crying baby emits sound with an intensity of $8.0 \times 10 ^ { - 8 } \mathrm {~W} / \mathrm { m } ^ { 2 }$ Calculate a reasonable estimate for the intensity level from a set of quintuplets (five babies) , all crying simultaneously at the same place? The lowest detectable intensity is $1.0 \times 10 ^ { - 12 } \mathrm {~W} / \mathrm { m } ^ { 2 }$

• A) 49 dB
• B) 36 dB
• C) 56 dB
• D) 69 dB
• E) 79 dB

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Definitions:

Job-Order Costing

A cost accounting system used to accumulate costs of production by job rather than by process, suitable for companies producing individual, custom orders.

T-Accounts

A graphical representation used in accounting to depict the debit and credit sides of an account.

Manufacturing Overhead

All indirect costs associated with manufacturing, such as utilities, maintenance, and salaries for management, not directly involved in the production.

Cost of Goods Manufactured

The total production cost of goods completed during a specific period, including materials, labor, and overhead.