Mathematics, 22.10.2021 20:50, hddjdudusu
The sound intensity level, B is measured in decibels (dB), of a sound of intensity I, measured in watts per square meter, is defined as B=10 log I/Io where Io = 10^-12 watt per square meter is the least intense sound that a human ear can detect.
(a) Determine the sound intensity level of normal conversation with sound intensity of 3.2 x 10^-6 watt per square meter. Leave your answer in 2 decimal places. (2 marks)
(b) If a speaker has sound intensity level at 240 dB, what is its sound intensity? (3 marks)
Answers: 1
Mathematics, 21.06.2019 15:00, arias333
Solve the word problem. the table shows the low outside temperatures for monday, tuesday, and wednesday. by how many degrees did the low temperature increase from monday to tuesday? this function table shows the outside temperature for a given a. 21.1⁰ b. 8.6⁰ c. 4.9⁰ d. 3.9⁰(the picture is the graph the the question is talking about.)
Answers: 1
Mathematics, 21.06.2019 18:00, lclaudettecarte3550
Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2
Answers: 2
The sound intensity level, B is measured in decibels (dB), of a sound of intensity I, measured in wa...
Physics, 07.12.2021 16:40
English, 07.12.2021 16:40
Mathematics, 07.12.2021 16:40
English, 07.12.2021 16:40
Social Studies, 07.12.2021 16:40
Social Studies, 07.12.2021 16:40