In a factory there are two machines, which emit sound uniformly in all directions. The machines have individual intensity levels (only one machine on at a time) measured at a certain position P to be 84 dB and 87 dB respectively. When both machines are running simultaneously, what is the combined intensity 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? .
In a factory there are two machines, which emit sound uniformly in all directions. The machines have individual intensity levels (only one machine on at a time) measured at a certain position P to be 84 dB and 87 dB respectively. When both machines are running simultaneously, what is the combined intensity 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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Transcribed Image Text:In a factory there are two machines, which emit sound uniformly in all directions. The
machines have individual intensity levels (only one machine on at a time) measured at
a certain position P to be 84 dB and 87 dB respectively.
When both machines are running simultaneously, what is the combined
intensity 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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