How can running time can be shortened?

1)student's attire



reason:

2)student's shoes



reason:

3)the equipment used at starting line



reason:

What are the theoretical properties of a gas at a temperature of 0 kelvin?

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

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?