Physics, 01.11.2019 03:31 nickthequick
You purchased a new set noise-cancelling headphones to wear on your plane ride to hawaii last month. the intensity of the background noise on the plane (prior to wearing the headphones) was 4 x 10-2 w/m2. when wearing the headphones, the intensity of the noise was reduced to 2 x 10-3 w/m2. how much noise reduction (in db) did the headphones provide?
Answers: 2
Another question on Physics
Physics, 21.06.2019 14:30
What is the approximate amplitude of this wave a.10 seconds b.15 centimeters c.30 centimeters d.15 seconds
Answers: 1
Physics, 22.06.2019 03:00
Isla’s change in velocity is 30 m/s, and hazel has the same change in velocity. which best explains why they would have different accelerations? isla had negative acceleration, and hazel had positive. isla had a different time than hazel. isla had positive acceleration, and hazel had negative. isla went a farther distance than hazel.
Answers: 1
Physics, 22.06.2019 09:30
Need asap ‼️ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)
Answers: 1
Physics, 22.06.2019 14:30
When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell
Answers: 2
You know the right answer?
You purchased a new set noise-cancelling headphones to wear on your plane ride to hawaii last month....
Questions
Biology, 16.03.2022 20:30
Mathematics, 16.03.2022 20:30
Mathematics, 16.03.2022 20:30
Biology, 16.03.2022 20:30
Mathematics, 16.03.2022 20:30
History, 16.03.2022 20:30
Mathematics, 16.03.2022 20:40
Mathematics, 16.03.2022 20:40
Arts, 16.03.2022 20:40
