What work is required to slow a 20 cm diameter solid ball rolling at 5 m/s to 1 m/s? The mass of the ball is 2.0 kg

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?