The sound level measured in a room by a person watching a movie on a home theater system varies from 40 dB during a quie
Posted: Mon May 09, 2022 6:56 pm
The sound level measured in a room by a person watching a movie on a home theater system varies from 40 dB during a quiet part to 80 dB during a louder part. approximately how many times louder is the latter sound?