When a covalent bond forms between two atoms, usually a. an ionic bond will form just afterwards. b. an ionic bond will form just beforehand. c. the resulting substance will be just like the atoms that bonded to form it. d. the resulting substance will be very different from the atoms that bonded to form 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?