Explain why the following scenario describes a failure of the second step in the engineering design process, “conduct background research.” Situation: Your science teacher asks your group to design a bridge over Victoria Falls, the largest waterfall in the world. You get together and brainstorm possible types of bridges to build.

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?