In 1 to 2 sentences analyze what type of collision occurs when a tennis racket hits a ball as shown in the image and explain how you know in addition predict the motion after the collision. Plz help need asap

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?

The radius of an atom is closest in size to a

Which sections of the heating curve illustrate this process?