1. When Washingtonâs father Augustine died in 1743, George Washington became a slave owner at the early age of eleven. In his will, Augustine left his son the 280 acre family farm near Fredericksburg, Virginia. In addition, Washington was willed ten slaves.
On the decibel scale, the smallest audible sound (near total silence) is 0 dB. A sound 10 times more powerful is 10 dB. A sound 100 times more powerful than near total silence is 20 dB. A sound 1,000 times more powerful than near total silence is 30 dB.
| 0 Comments. Decibel is a logarithmic unit of measurement that expresses the magnitude of a physical quantity; it is used to measure sound level among others. If you are having a normal conversation then you are producing 60-70 decibels, if you are in a loud rock concert, the sound reaches up to 125 decibel.