In: Physics
A spherical source radiates sound uniformly in all directions. At a distance of 13 m, the sound intensity level is 98 dB. What power is radiated by this source?
Answer 3 significant figures In W
The intensity levels of two people's speech are 62.5 dB and 66.5
dB, respectively. What is the intensity level of the combined
sounds?
Answer 3 significant figures in dB
A person standing a certain distance from seventeen identical loudspeakers is hearing a sound level intensity of 127 dB. What sound level intensity would this person hear if seven are turned off?
Answer 3 significant figures in dB