45 decibels (meausurement of sound)
"Permitted Exposure Time Guidelines - SPL"Sound pressure level Lp and permissible exposure time t:115 dB = 0.46875 minutes (~30 sec)112 dB = 0.9375 minutes (~1 min)109 dB = 1.875 minutes (< 2 min)106 dB = 3.75 minutes (< 4 min)103 dB = 7.5 minutes100 dB = 15 minutes97 dB = 30 minutes94 dB = 1 hour91 dB = 2 hours88 dB = 4 hours85 dB = 8 hours82 dB = 16 hoursLower dBs are said to be harmless
mean = 270 divided by 5 = 54 median = 45 mode = 45
If you mean .75 of an hour then it is 45 minutes
Time is usally expressed in hours, minutes, or seconds. "Permitted Noise Exposure Time Guidelines - SPL" Sound pressure level Lp and permissible exposure time t: 115 dB = 0.46875 minutes (~30 sec) 112 dB = 0.9375 minutes (~1 min) 109 dB = 1.875 minutes (< 2 min) 106 dB = 3.75 minutes (< 4 min) 103 dB = 7.5 minutes 100 dB = 15 minutes 97 dB = 30 minutes 94 dB = 1 hour 91 dB = 2 hours 88 dB = 4 hours 85 dB = 8 hours 82 dB = 16 hours Lower dBs are said to be harmless
45
100 percent is 0 dB.50 percent is - 6 dB.45 percent is -6.935749724 dB.10 percent is - 20 dB.
The sound pressure of 45 dB is about a quiet library and 50 dB is about an everage home.
dB mean Decibel.
What does DB 3 925 CN mean
dB is the abbreviation of Decibel
what does DB stand for on grades
dB stands for decibel and is used to measure sound intensity in acoustics
'DB' is short for 'Date of Birth.'
database
designated batter
no lead
Dw. db means weighted amount variance between rooms in acoustics. db is actually short for decibel, the unit for sound.