4) A factory uses 12 metal stamping machines. When all machines are operating, they produce a sound level of 103 dB. a) What is the intensity of the sound produced 3 of the machines are down for maintenance. b) What is the intensity of the remaining machines? W/m² c) What is the sound leyel that is produced by the remaining machines? dB all 12 machines? d) What is the intensif produced by I machine? e) What is the sound level that is produced by I machine? dB

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