A student drops a feather from a height of 36.0m. Determine all unknowns and answer the following questions.
How long did the feather remain in the air?
S
What was the feather's speed just before striking the ground?
m/s

Need in all of themmm only answer if you know plsssss

What happens in a global convection cell

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?