subject
Mathematics, 28.01.2021 03:30 edjiejwi

he 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. Braylee 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 Braylee’s music than Jessica’s?

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 20.06.2019 18:04
What is the rescursive formula for this geometric sequence? 7, -14, 28, -56
Answers: 2
question
Mathematics, 21.06.2019 13:50
Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean
Answers: 2
question
Mathematics, 21.06.2019 20:00
The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?
Answers: 1
question
Mathematics, 21.06.2019 22:00
Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0
Answers: 2
You know the right answer?
he loudness, L, measured in decibels (Db), of a sound intensity, I, measured in watts per square met...
Questions
question
Health, 18.11.2020 20:50
Questions on the website: 13722359