Question

please break it down step by step I'm really confused for question 4 and 2 b

1. Find the intensity level of sound with the following intensities: a) 6.84 x 10-6 W/m2 b) 45.6 x 10-14W/m2 2. Find the intensity corresponding to the following: a)-18.0 dB b) 118 dB 3. Two sounds differ in intensity levels by 105 dB. What is the ratio of the intensities of the two sounds? What sound intensity level is produced when 3 identical loudspeakers in a sound system are all switched on, assuming that the intensity (W m 2) of each speaker alone is sufficient to produce an 80.0 dB sound level? Neglect interference effects.

Answer 1

Sound leve in dB wheie w/m ferco interdiy I 1 I 4xlm- 0-12 68.35 dB 2 C6 SO o-12 o- /D o.3 W/m 2 Jound Lue 6y cach eaker > fod8 POoduced by each afeake len ly In tensity denhidal lolualafeoku heee Pho duc-ed y Inten rty So