Ask Question
11 December, 02:28

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 14 feet from a jetski, it is 75 decibels loud.

How loud is the jetski when the person is 45 feet away?

+4
Answers (1)
  1. 11 December, 02:48
    0
    Answer

    7.2593 decibels

    Explanation

    L ∝ 1/d² Inserting the constant of variation,

    L = k/d²

    k = Ld²

    = 75 * 14²

    = 14,700

    When d = 45 feet;

    L = 14,700/45²

    = 14,700/2,025

    = 7.2593 decibels
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “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 ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers