3. Sound caused by an explosion on the ocean's surface travels vertically downward to an underwater mountain and is reflected back to a microphone at
the surface. If this takes 11.6 s to occur and sound travels at h1450 m/s in water,
what is the depth to this mountain?

Which statement best explains why an object weight less on mercury than it does on earth

Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?

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?