Astack of books is sitting on a table. which force is pulling downward on it?

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot

Aplayground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about a vertical axle through its center. a child applies a 26.0 n force tangentially to the edge of the merry-go-round for 15.0 seconds. if the merry-go-round is initially at rest, how much work did the child do on the merry-go-round?

Ways that industry and agriculture use physical properties to separate substances