In what kind of reaction is a compound formed from two reactants

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

Ways that industry and agriculture use physical properties to separate substances

Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.