subject
Physics, 20.08.2019 22:20 xem74

Apartition between guestrooms in a hotel is 9' x 22! the total absorption measured in the receiving guestroom is 600 sabins at 500 hz. the manufacturer's literature assures you that the tl of the partition is 47 db at 500 hz. determine the noise reduction between the two rooms at this frequency.

ansver
Answers: 3

Other questions on the subject: Physics

image
Physics, 21.06.2019 22:00, sophiamoser
In a wind tunnel the speed changes as the cross sectional area of the tunnel changes. if the speed in a 6' x 6' square test section is 100 mph, what was the speed upstream of the test section where the tunnel measured 20' x 20'? use conservation of mass and assume incompressible flow. conservation of mass requires that as the flow moves through a path or a duct the product of the density, velocity and cross sectional area must remain constant; i. e., that ova-constant. a model is being tested in a wind tunnel at a speed of 100 mph if the flow in the test section is at sea level standard conditions, what is the pressure at the model's stagnation point? (a) the tunnel speed is being measured by a pitot-static tube connected to a u- tube manometer. what is the reading on that manometer in inches of water? (b) at one point on the model a pressure of 2058 psf is measured. what is the local airspeed at that point?
Answers: 2
image
Physics, 22.06.2019 03:30, Bryanguzman2004
Two polarizers are oriented at 24.0∘ to one another. light polarized at a 12.0-degree angle to each polarizer passes through both. what is the transmitted intensity (%)?
Answers: 2
image
Physics, 22.06.2019 21:30, tashaylinm02
Which sections of the heating curve illustrate this process?
Answers: 2
image
Physics, 22.06.2019 22:50, erinharrington15
What is an electric motor? explain its operation. 2-3 sentence
Answers: 1
You know the right answer?
Apartition between guestrooms in a hotel is 9' x 22! the total absorption measured in the receiving...

Questions in other subjects:

Konu
Mathematics, 28.01.2020 08:31
Konu
English, 28.01.2020 08:31