Problem 2:   Hydraulic systems utilize Pascal's principle by transmitting pressure from one cylinder (called the primary) to another (called the secondary). A certain hydraulic system is designed to exert a force 85 times as large as the one put into it. Part (a)  What must be the ratio of the area of the secondary cylinder to that of the primary cylinder?  Part (b)  What must the corresponding ratio of their diameters be?

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.