Aircraft that achieve forward propulsion by expelling a stream of fluid are called

Aircraft that achieve forward propulsion by expelling a stream of fluid are called jet engine, a machine capable of accelerating a mass of gas to, in this way, create a thrust. The jet engine is widely used in aircraft propulsion, although its application is not exclusive to this means of transport.

Alright, i'm gonna try to explain this as good as possible. the law of conservation is like a collection overtime. it never changes though. no matter how you change the constituent parts.

True but only in the south coastal areas during september and early october.