Mathematics, 08.01.2020 00:31 11091
The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sounds is 10^-10 watt/m^2.
the level of sound in the quiet room is (10,20, or 100) db, and the intensity of sound in the busy street is (10^-1, 10^-5, or
10^-10) wat/m^2.
use the formula b=10log(i/io) , where b is the sound level in decibels, i is the intensity of sound, and io is the smallest sound intensity that can be heard by the human ear (roughly equal to 1x10^-12 watts/m^2).
Answers: 3
Mathematics, 21.06.2019 13:30
In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula c= r/1.8 - 273, what is the temperature in celcius corresponding to r degrees rankine.
Answers: 2
Mathematics, 21.06.2019 16:00
What is the value of x? enter your answer in the box. x = two intersecting tangents that form an angle of x degrees and an angle of 134 degrees.
Answers: 3
Mathematics, 21.06.2019 16:40
According to the number line, what is the distance between points a and b? v ++ + + + + -16 -14 -12 -10 -8 + 6 + 4 + -2 + 0 + 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 o6 units o 7 units 12 units o 14 units
Answers: 1
Mathematics, 21.06.2019 17:20
Match the equivalent expressions. x - 3y + 12 12 - 3y - 2x + x + 2x 3x + 2y - 2x + y + 12 3y + 12 3x + y - 12 4y + 3y + 3x - 6y - 10 - 2 x + 3y + 2x - 3x + 7 + 5 x + 3y + 12 5 + 2y + 7x - 4x + 3y - 17
Answers: 1
The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensit...
Social Studies, 07.07.2019 03:30
English, 07.07.2019 03:30
Advanced Placement (AP), 07.07.2019 03:30
Chemistry, 07.07.2019 03:30
Physics, 07.07.2019 03:30
Mathematics, 07.07.2019 03:30
Health, 07.07.2019 03:30
Chemistry, 07.07.2019 03:30