PLEASE HELP WILL GIVE BRAINLIEST 4. Suppose Galileo drops a ball off of the leaning tower of Pisa. As the ball falls towards the earth it gains kinetic energy, what is the source of this energy?
a. the energy is stored in the Earth b. the energy is stored in the ball due to its position
c. the energy is created by the falling ball d. all of the above

Which changes of state do the labels represent? a: b: c:

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

Astone is thrown into a pond. what happens to the amplitude of the resulting waves as they get farther from the point where the stone hit the water? explain.