Answers: 2
Mathematics, 21.06.2019 13:30
The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).
Answers: 1
Mathematics, 21.06.2019 16:40
What is the solution of the systems of equations? y=2/3x+3 x=-2
Answers: 2
Mathematics, 21.06.2019 19:30
He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?
Answers: 1
Mathematics, 21.06.2019 23:00
Which geometric principle is used to justify the construction below?
Answers: 1
What is the ratio 780 to 220 simplified?...
Mathematics, 13.10.2020 15:01
Mathematics, 13.10.2020 15:01
Mathematics, 13.10.2020 15:01
History, 13.10.2020 15:01
Geography, 13.10.2020 15:01
Mathematics, 13.10.2020 15:01
Mathematics, 13.10.2020 15:01
Mathematics, 13.10.2020 15:01
Mathematics, 13.10.2020 15:01
English, 13.10.2020 15:01
Mathematics, 13.10.2020 15:01
Physics, 13.10.2020 15:01
English, 13.10.2020 15:01
Mathematics, 13.10.2020 15:01