In a factory there are two machines, which emit sound uniformly in all directions. Themachines have individual intensity levels (only one machine on at a time) measured ata certain position P to be 84 dB and 87 dB respectively.When both machines are running simultaneously, what is the combinedintensity level (in dB) at this position?●If the machine producing 87 dB is located 3.40 m away from the position P,how much sound power (in watts) is the machine emitting?.

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