![subject](/tpl/images/cats/fizika.png)
Aconcert loudspeaker suspended high off the ground emits 34 w of sound power. a small microphone with a 1.0 cm2 area is 44 m from the speaker. part a -what is the sound intensity at the position of the microphone? express your answer in mw/m2and using two significant figures. i = /m2part b -what is the sound intensity level at the position of the microphone? express your answer in db using two significant figures.β=
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Physics
![image](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 18:00, Pumpkinputters
Awind turbine is initially spinning at a constant angular speed. as the wind's strength gradually increases, the turbine experiences a constant angular acceleration 0.173 rad/s2. after making 2870 revolutions, its angular speed is 132 rad/s. (a) what is the initial angular velocity of the turbine? (b) how much time elapses while the turbine is speeding up?
Answers: 1
![image](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 18:20, sahaitong814
What color of light must blue light mix with to create white light? a. yellow b. white c. blue d. green
Answers: 2
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 01:00, blesskids600
An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.
Answers: 1
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 03:30, itsRyanPlayzMC9660
Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100°f. what is happening between the cooler thermometer and scout's body? a) scout's body is applying a force to the particles in the thermometer. b) kinetic energy is being transferred from her mouth to the thermometer. c) potential energy is being lost by the thermometer and gained by scout's body. d) the potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer.
Answers: 1
You know the right answer?
Aconcert loudspeaker suspended high off the ground emits 34 w of sound power. a small microphone wit...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 21:07
![Konu](/tpl/images/cats/obshestvoznanie.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 21:07
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/health.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 21:07
![Konu](/tpl/images/cats/istoriya.png)
History, 05.05.2020 21:07