Question

Constants 1 Periodic Ta The sound intensity 60.0 m from a waling tomado sienis 0.130 W/m . Part A What is the intensity 1400 m ? Express your answer with the appropriate units Value Units Submit Previous Awes Best * Incorrect; Try Again: 9 attempts remaining - Part B W/m. Estimate the maimum distance at which he siren can be heard The weakest intensity likely to be heard over background noise is Express your answer with the appropriate units.

Answer 1

intensity of sound varies as ; with r being the distance from sound source let I, be theint ensity =1.30– ī at a distance = f =60m let I, be the int ensity at a dis tan ce = r2 =1400 m =>Ir2 = 12 132 weplug the know values in the relation gives => 1 =0.00238. B) if the weakest intensity which can be heard is =I2 =1.0" 31.ouw and the corresponding distance =rz =>r = ; weplug the know values in the relation gives =16.841e+04m or 68.41 km