How does charging by conduction occur? a) a charged object is brought near a neutral object without touching it. b) a neutral object touches another neutral object. c) a charged object touches a neutral object. d) a neutral object is brought near another neutral object without touching it.

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?