praharsha answered question 1/23/2010 How Would Life Be Affected If Friction Suddenly Vanishes?list 10 Such Situations Life wouldnt be possible,because we cannot walk,eat,write or do anything in its absence
praharsha answered 1/23/2010 What Two Forces Keep The Planets In Orbit Around The Sun? Centrifugal(force from outside)and centripetal(force acting 4m the center)
