A fluid is flowing in the 4 in. diameter cylinder of a hydraulic system. When 4 points activated the piston moves 3 ft. in 15 seconds. (144 inches/minute). What
is the flow rate, in gallons per minute of the cylinder? *
A. 576 gal./min.
B. 2.5 gal./min
C. 7.8 gal./min
D. 1808 gal./min

Plot schematically the tensile stress versus strain curves for a typical thermoplastic material at a temperature below its glass transition temperature (tg and at a temperature above its tg, respectively. do the same for a typical thermosetting material. list in a table any differences or similarities between the two materials at t> tg and t < tg, respectively, and relate them to the structures of the two types of polymers