Mathematics, 25.05.2020 22:57, tlecuyer
The loudness, L, measured in decibels (Db), of a sound intensity, I, measured in watts per square meter, is defined as L = 10 log StartFraction I Over I 0 EndFraction, where I 0 = 10 Superscript negative 12 and is the least intense sound a human ear can hear. Jessica is listening to soft music at a sound intensity level of 10-9 on her computer while she does her homework. Baylee is completing her homework while listening to very loud music at a sound intensity level of 10-3 on her headphones. How many times louder is Baylee’s music than Jessica’s?
A. One-third times louder
B. 3 times louder
C. 30 times louder
D. 90 times louder
Answers: 2
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The loudness, L, measured in decibels (Db), of a sound intensity, I, measured in watts per square me...
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