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).

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.

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.