The jib crane shown in the figure below is subjected to three coplanar forces, and the diagonal force P has a magnitude of 1,106 N. Replace the multiple forces with a single equivalent resultant force applied to the vertical column AB. 2 m 800 N4+ 1.5 m B. 1 m 270 N 2 m P 1 m C A Specify the following for the single equivalent resultant force: a) Magnitude of the force, b) Direction of the force (either its unit vector or its angle with the positive x axis), and c) Height above the x axis where the resultant's line of action intersects the column AB.

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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.