A section of highway has a speed-flow relationship of the following form: q=au^2+bu

It is known that at capacity (which is 2,900 veh/hr) the space-mean speed of traffic is 31 mph. Determine the space-mean speed when the flow is 1,400 veh/hr, and also the free-flow speed

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.

Fluids at rest possess no flow energy. a)- true b)- false

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false