Popular questions and responses by Thobiswa
  1. Science

    A ball of mass 200 g is dropped from a height 3 m above the ground onto a hard floor, and rebounds to a height of 2.2 m. If the ball is in contact with the floor for 0.002 s calculate the average force exerted by the floor on the ball

    asked on March 7, 2014
  2. Economics

    What are the cost and consequence of providing subsidies and welfare

    asked on June 2, 2015