Four balls are dropped from a platform, 20 meters high. which ball will experience the greatest change in kinetic energy, from platform to ground?
10 kg
20 kg
30 kg
40 kg

Agas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kpa to a final volume of 0.065 m^3 while its temperature is kept constant. how much work is done by the system?

Energy flows from the producer level to the level. is called

You throw a baseball directly upward at time =0 at an initial speed of 14.9 m/s. what is the maximum height the ball reaches above where it leaves your hand? ignore air resistance and take =9.80 m/s2.