the frequency of a source is 20KHz. THE FREQUENCIES OF SOUND WAVE PRODUCED BY IT IN WATER AND AIR WILL BE.
December 4, 2012
find the area of the sector with 80 degree angle and radius=8
October 5, 2011
five sentences oncarrot,potatoin general
June 9, 2011
What are the four characteristics of the internal alignment of any compensation strategy?
October 3, 2009
September 12, 2008