What equal and opposite reaction do you see in a roller coaster

Newton's third Law states that for every action, there is an equal and opposite reaction. This means that as you push down on the seat, the seat pushes back at you. This is also represents the force your body feels throughout the roller coaster or "g-force".

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..