Hello iiejlaw,
Actually what does the question mean? Can you just comment? Don't worry. I will edit my answer, after you say the question ok?
While there are suburban communities or NYC, the city itself is an urban community. It is a very large city.
compressional/primary waves and shear/secondary waves
New Jersey is a northeastern state.
-150
Cause if the players produce the same amount then you get the same thing but with negative