A highway is designed for traffic moving at 65 mph. Along a certain portion of the highway, the radius of a curve is 900 ft. The curved is banked, as shown below so that no friction is required to keep cars on the road. Determine, a. The required banking (0) of the road so that no friction is required. b. The minimum coefficient of friction between the tires and the road that would keep traffic from skidding at this speed if the curve is not banked.

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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.