The loudness, L , of a sound (measured in decibels, dB) is inversely proportional to the square of the distance, d , from the so

Question

3 years ago

12

urce of the sound. When a person 14 feet from a jetski, it is 70 decibels loud. How loud is the jetski when the person is 46 feet away?

1 answer:

Ivahew [28] · Answer 1 · 2022-03-19T18:48:00+03:00

5 0

Answer:

Loudness (L) = 6.48 dB

Step-by-step explanation:

Given:

Loudness (L) = k / d² , where k = constant

So,

70 = k / 14²

k = 13,720

New distance = 46 feet

Find:

Loudness (L) = ?

Computation:

Loudness (L) = 13,720 / 46²

Loudness (L) = 13,720 / 2,116

Loudness (L) = 6.48 dB