A baseball with a mass of 0.8 kg is moving at asperd of 45.0 m/s . what is the baseballs kinetic energy SOMEONE HELP PLEASE!!

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?

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?

According to the image below, which season is about to begin in the southern hemisphere? a. summer b. autumn c. winter d. spring