Rough riders inc. manufactures jeans in the cutting and sewing process. jeans are manufactured in 50-jean batch sizes. the cutting time is 6 minutes per jean. the sewing time is 15 minutes per jean. it takes 5 minutes to move a batch of jeans from cutting to sewing.

a. compute the value-added, non-value-added, and total lead time of this process.

b. compute the value-added ratio. round to one decimal place.

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

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.

The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.