Arefrigeration cycle rejects qn 500 btu/s to a hot reservoir at 540 r, while receiving c200 btu/s at 240°r. this refrigeration cycle a)- is internally reversible b)- is irreversible c)- is impossible d)- cannot be determined

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.

How much power could a wind turbine produce if it had the following specifications? cp = 0.45 -d=1.2kg/m3 d=50m v 5m/s

In general, how do thermosetting plastics compare to thermoplastics in mechanical and physical properties?