Loudness of noise and duration of noise both affect whether hearing would be damaged. A noise level of more than 140 dB could instantly damage hearing. Safe Work Australia states that workers should not be exposed to noise levels of more than 85 dB, averaged over an 8-hour period. Safe Work Australia claims that the risk of damage to hearing by noise at a level of 85 dB over 8 hours is the same as the risk due to 91 dB noise over 2 hours, and therefore recommends limiting the amount of time spent near sources of loud noise. (c) What sound intensities do these noise levels correspond to? (d) The eardrum has an area of 55 mm2 . i) At what rate would sound energy be transported to the eardrum of a worker subjected to these noise levels