Use Bisection method to determine the drag coefficient needed so that an 80 kg parachutist has a velocity of 36 m/s after 4s of free fall. The acceleration of gravity is 9.81 m/s 2. start with initial guesses X i = 3 ,X u = 5 and iterate until approximate relative error falls below 2%. Use excel to make table if possible.

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?