For the truss shown, determine the force in members bc and fc, and state if the members are in tension or compression. also, identify all zero force members. the connection at a is pinned and connection d is a roller connection.

Ifa component is made of two or more materials with different modulus of elasticity (e), it is called a composite member and we calculate the factor·n". mention the formula for calculating n". also, ifn> 1, explain what will happen to the 1. transformed.gi) ifn 1, what will happen to the material when transformed material when

Describe one experiment in which the glass transition temperature and melting temperature of a totally amorphous thermoplastic material can be determined. show the relevant experimental results in a diagram which should be properly annotated with the two temperatures clearly marked. what is likely to happen to the curve in the diagram if the amorphous polymer is replaced by a thermosetting type?

How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?