Please help, 15 points! "The mass of the electrons is so small that they don't make a difference to the atom," someone says. How would you respond?

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

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?