The hot water needs of an office are met by heating tab water by a heat pump from 16 c to 50 c at an average rate of 0.2 kg/min. if the cop of this heat pump is 2.8, the required power input is: (a) 1.33 kw (d) 10.2 kw (b) 0.17 kw (c) 0.041 kw

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