The Loudness L of a Sound (Measured in Decibels, DB)

question 168

Short Answer

The loudness L of a sound (measured in decibels, dB) is inversely proportional to the square of the distance d from the source of the sound. A person who is 10 ft from a lawn mower experiences a sound level of 70 dB. How loud is the lawn mower when the person is 25 ft away?

---

Definitions:

Baptism

The Christian bathing ceremony in which an infant or a convert becomes a member of the Christian community.

Laity

Individuals who are members of a religious group but are not ordained clergy or part of the religious order, often participating in secular affairs of the community.

Private Devotions

Personal religious practices carried out by individuals to express their faith outside of formal church services, such as prayer, meditation, or reading religious texts.

Classical Illusionism

An artistic technique that uses perspective and other realistic strategies to create the illusion of three-dimensional space on a two-dimensional surface.