Estimate the production (in CCY/hr) of a self-propelled tamping foot roller under the following conditions:

Average speed: 5 mph
Compacted lift thickness: 8 inches
Effective roller width: 10 ft.
Number of passes: 9
Job efficiency: 0.85

How many hours will it take for two rollers to compact 6,000 CCY?

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.