What statement best defines a universal law a. it is in effect at all times b. it operates only under specific conditions c. it is in effect some of the time d. it changes over time

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?

Which additional product balances the reaction h2so4 + 2naoh → na2so4 + 2h2o 2oh h2o2 h3o

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?