What is the resistance a circult when 9V batter is connected the circult to generate 0.002A

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.

Avoltaic cell converts chemical energy to

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?