Amap of eastern north america, showing the ph of rainfall in the various states, indicates that the ph of rain in new york state varies from 4.22 to 4.40. according to these figures, the most acidic rainfall in new york state has a ph of?

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?

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

What kind of waves require a medium to travel? question 6 options: light waves mechanical waves all waves need a medium to travel electromagnetic waves