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.
What is the decibel level of a drum line? On average, about 120 db, depending on size. What are the decibel levels for the hearing impairment classifications? It is important to understand that a decibel is just a unit of measure that is used to determine loudness of a sound or amount of hearing loss.