Write the Word or Phrase That Best Completes Each Statement $\mathrm { D } = 10.0 \log \left( \mathrm { S } / \mathrm { S } _ { 0 } \right)$

question 393

Multiple Choice

Write the word or phrase that best completes each statement or answers the question.
-Use the formula $\mathrm { D } = 10.0 \log \left( \mathrm { S } / \mathrm { S } _ { 0 } \right)$ , where the loudness of a sound in decibels is determined by $\mathrm { S }$ , the number of watt $/ \mathrm { m } ^ { 2 }$ produced by the soundwave, and $\mathrm { S } _ { 0 } = 1.00 \times 10 ^ { - 12 } \mathrm { watt } / \mathrm { m } ^ { 2 }$ . What is the intensity in watt/ $/ \mathrm { m } ^ { 2 }$ of a noise measured at 37 decibels? (Round to the nearest tenth.)

• A) \(4.0 \times 10 ^ { 13 } \mathrm { watt } / \mathrm { m } ^ { 2 }\)
• B) \(3.7 \times 10 ^ { - 10 } \mathrm { watt } / \mathrm { m } ^ { 2 }\)
• C) \(5.0 \times 10 ^ { - 8 } \mathrm { watt } / \mathrm { m } ^ { 2 }\)
• D) \(5.0 \times 10 ^ { - 9 } \mathrm { watt } / \mathrm { m } ^ { 2 }\)

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Definitions:

Abbasids

A dynasty that ruled the Islamic Caliphate from 750 to 1258, known for their cultural achievements and the establishment of Baghdad as their capital.

Umayyad Caliphs

Leaders of the Umayyad dynasty, which was the second of the four major Islamic caliphates established after the death of Muhammad.

Initial Spread

The early phase of dissemination or expansion of an idea, disease, technology, etc., from its point of origin to new areas.

Mamluk

Arabic, “slave.” Also the name of the Muslim dynasty of former Turkish slaves that ruled Egypt from 1250 to 1517.