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 17:30
How do you use the elimination method for this question? explain, because i really want to understand!
Answers: 1
Mathematics, 21.06.2019 19:30
The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)
Answers: 3
Mathematics, 21.06.2019 21:30
Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.
Answers: 1
What is the root number of 121?...
Mathematics, 13.01.2020 02:31
Mathematics, 13.01.2020 02:31
Mathematics, 13.01.2020 02:31
Mathematics, 13.01.2020 02:31
Mathematics, 13.01.2020 02:31
Biology, 13.01.2020 02:31
Social Studies, 13.01.2020 02:31
Mathematics, 13.01.2020 02:31
English, 13.01.2020 02:31
History, 13.01.2020 02:31