Which functions are part of the Implementation Phase of project development? a.) set requirements, build, and plan manufacturing

b.) build, plan manufacturing, and assemble and test

c.) assemble and test, set requirements, and build

d.) plan manufacturing, assemble and test, and set requirements

Air enters a horizontal, constant-diameter heating duct operating at steady state at 290 k, 1 bar, with a volumetric flow rate of 0.25 m°/s, and exits at 325 k, 0.95 bar. the flow area is 0.04 m2. assuming the ideal gas model with k = 1.4 for the air, determine (a) the velocity at the inlet and exit, each in m/s, and (c) the rate of heat transfer, in kw flow rate, in kg/s, (b) the mass kg 0.3