Hi guys,
I was just wondering if I'm heading in the right direction with this question. Thank you so much in advance for your time!!
A loudspeaker emits energy at the rate of 56W , spread in all directions. What is the intensity of sound 18m from the speaker?
Working out (current):
d=18m
P = 56W
I (intensity) = P/[4pi(r^2)]
therefore: 56/[4*pi*(18)^2]=0.01375W/m^2
Am I on the right track?
Thank youuuuuu
1 answer