A vacuum cleaner has an intensity level of 70dB at 2m from the object. What is the intensity of the sound? Please use th

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A vacuum cleaner has an intensity level of 70dB at 2m from the
object. What is the intensity of the sound? Please use this
equation sheet and show steps.

A Vacuum Cleaner Has An Intensity Level Of 70db At 2m From The Object What Is The Intensity Of The Sound Please Use Th 1 (21.89 KiB) Viewed 12 times

B v=343m/s V= W = v = (331m/s) 273K 1 AE A At 1. = 1X 10-12W/m2 A v = v- I = AA I =P Ir = Izra B2 - B1 = 10dB * log() I Pau 4π. 2 B = 100B * log() B2 – B1 = 10dB * log($ fo = f(y=0) -Us In = 1 fn = 42 nu שות fn = 22 4L