0
its as loud as you talking at normal volume
Wiki User
∙ 13y ago
Wiki User
∙ 11y ago30 metres
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How loud is 69 db?
Since the db scale is relative, it depends on what 0 db means. Typically, however, 69 db is a very soft sound, almost a whisper.
How loud is 78 db in relations to everyday sounds?
its about the same as the dial tone on a phone
What is the chemical symbol for hahnium?
Hahnium was a proposed name for element 105 but was rejected by IUPAC in favor of (Db) dubnium.
What is the loudest man made noise?
The loudest noise ever was the eruption of a volcanic island in the Pacific Ocean. The island of Krakatoa in Indonesia that erupted in 1883. The island blew a apart and caused a major tsunami.
What is the name of family members of the element rutherfordium?
Rutherfordium is a transactinoid.The members of the transactinoids family are: Rf, Db, Sg, Bh, Hs, Mt, Ds, Rg, Cn, Uut, Fl, Uup, Lv, Uus, Uuo. They are transition metals, period 7 of the periodic table of Mendeleev.
How much dB you can hear by your ears?
You can start to hear at the threshold of hearing at 0 dB and end up at the threshold of pain at 137.5 dB.
What decibel range can a human hear in?
We can hear from 0 dB, that is the threshold of hearing up to 130 dB that is the threshold of pain.
How many dB of attenuation translates into 50 percent of the voltage being lost to attenuation?
db=20log(V1/V2) or 10log(P1/P2) Example: db=20log (100/50) db=20log(2) db=20*.3010 db=6.02
How loud is 45 - 50 decibels?
The sound pressure of 45 dB is about a quiet library and 50 dB is about an everage home.
How far would you have to be to get a reading of 60 dB when standing outside 15 m away from a boombox the intensity level was measured at 80 db?
A reduction of 20 dB corresponds to increasing the distance from the sourceby a factor of 10.So you have to back off to 150 meters in order to reduce the sound level to 60 dB.
What is 45 percent in decibels?
100 percent is 0 dB.50 percent is - 6 dB.45 percent is -6.935749724 dB.10 percent is - 20 dB.
Is there more energy in a 30 dB or 40dB sound wave?
40 dB has ten times the power of 30 dB. 50 dB has another ten times as much power.
Human capacity to hear sound measured in Hertz?
measeured in desibel dB
How much louder is a sound wave that has an intensity of 50 dB than a sound wave with an intensity of 20 dB?
The power in the wave is [ 30 dB = 1,000 times ] greater.
How many decibels is quiet conversation?
20 to 50 decibels (dB).
Which is permissible level of noise in a silent zone at daytime?
50 db
What sound level is dB is required for a 1 sone loudness at frequency 50 Hz?
1 sone = 40 dB at 1 kHz.
