propulsion in that it creates a jet and by so doing has a thrust exerted upon it that is the propelling ... slates that the heat QH added to asystemminus the work W done by the system depends only upon the initial ... 속도항은 선형이 아니기 때문에 그들의 기준은 고정된다.Example 3.4 Water is flowing in an open channel (Fig. 3.11) at a depth