You read an article about global warming, and it is very convincing. It shows that the weather patterns do not indicate that global warming is an issue to be concerned about. It never discusses that there are opposing views, but it is so convincing that you believe it must be accurate. This is called...

Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.

Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.