What is meant by an acceleration of negative 2metre per second square​

When flexing to a reflective style, one should be specific, brief and to the point, and maintain a fast and decisive pace?

Aball is thrown vertically upwards from the top of a tower with a speed of 100m/s. it strikes the pound near the base of the tower after 25sec . the height of the tower is

Match the lithification processes. 1. contact pressure causing grains to "grow" together 2. increase in density due to weight of overburden 3. precipitation of bonding agents between grains a. recrystallization b. cementation c. compaction