Aportable audio speaker has a power output of 8.00 w. if the speaker emits sound equally in all directions, what is the sound intensity at a distance of 2.00 m from the speaker? express you

Explanation:

the formula to calculate the intensity, given the power:

Where is intensity, and is the power that the wave carries in a given area . In this case:

, and the area since the speaker emits the sound equally in all directions is the area of a surface of a sphere with a radius of :

replacing the radius value:

So, now that we know the area we can calculate the intensity:

the sound intensity at the distance of 2.00m from the speaker is

answer: good job it's all correct !

explanation:

graphing motion: mastery test

209be

what is the instantaneous acceleration of

the particle at point b?

0 meters/second?

10 meters/second?

12 meters/second?

velocity imetersisecond

15 meters/second?

20

time (seconds)

answer: 0 meters/second^2