The sound intensity at the ear of passenger in a car with a damaged muffler is 8.0 × 10-3 w/m2. what is the intensity level of this sound in decibels? use the threshold of hearing (1.0 × 10-12 w/m2) as the refere

99 dB

Explanation:

We have given that sound intensity with a damaged muffler =8×

we have to find the intensity level of the this sound in decibels

for calculating in decibels we have to use the formula

β=

  =

   =10 log8+10 log

   =10 log8+90 log10

   =10×0.9030+90

   =99 dB

atomic = no of protons.

mass number-atomic number = neutron number

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000