Engineering, 21.09.2020 01:01, delgadillogiselle711
Your business reclaims metal waste for reprocessing. You know of a company (ABC) that just installed a new machining process line that produces 1000 MT/yr of a waste powder that is 97% aluminum and 0.05% platinum (the remainder is other impurities). You can invest in a process to reclaim pure platinum and pure aluminum from that powder, but it costs $30 MM to build and $3 MM/yr to operate. You are required to have a simple payback of at most three years for any capital investment. If ABC gives you the waste free of charge, should you proceed to construct the reclamation system? If you build the new reclaiming system, what is the maximum price you can pay ABC per pound of waste powder but still meet the investment criteria?
Answers: 1
Engineering, 04.07.2019 18:10, ashleybaber4966
If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79
Answers: 1
Engineering, 04.07.2019 18:10, DestyHilBan1183
Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.
Answers: 3
Engineering, 04.07.2019 18:10, bckyanne3
Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.
Answers: 1
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