How does each of the following influence the tensile or yield strength of a semicrystalline polymer? (a) Molecular weight increase (b) Degree of crystallinity increase (c) Deformation by drawing (d) Annealing of an undeformed material

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false