An infinite plate is moved over a second plate by 0.3 m/s on a layer of liquid. For a gap, 0.3 mm, assume a linear velocity distribution in
the liquid. The liquid dynamic viscosity is 0.65 cp (centipoise) and its
specific gravity is 0.88. Determine: (a) The kinematic viscosity of the liquid,
(b) The shear stress on the upper plate, (c) The shear stress on the lower
plate, (d) The direction of each shear stress calculated in parts (c) and (d).

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.

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody

Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 mpa and -10°c at a rate of 0.05 ka/s and leaves at 0.8 mpa and 50°c. the refrigerant is cooied in the condenser to 0.72 mpa and 26'c. it is then throttled to 0.15 mpa. sketch the t-s diagram for the system and evaluate: 6) the rate of heat removai from the refrigerated space (kw), it) the power input to the compressor (kw), ii) the isentropic efficiency of the compressor (%), and iv) the cop of the refrigerator.