A flat plate is subject to a parallel flow of a fluid, with [infinity] = 0.5 m/s and T[infinity] = 400 K . The surface temperature is 450 K. Calculate and compare the following quantities at an axial position corresponding to x = 10 cm, when the fluid is engine oil or liquid sodium:

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?