A bar of a material has a length of 7.0 cm, and its cross section is 1.0 cm by 3.0 cm. A student measures the resistance of this bar and finds it to be 0.0014 Ω. What is the resistivity of this material? Use the relationship between resistance and resistivity above. Show your work. (Remember to convert all quantities to their standard SI units.

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.

Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false

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?