Consider the design of a CMOS gate computing F = � ∙ � ∙ � ∙ � a) Sketch a transistor-level schematic for this gate. (5 points) b) Annotate the sketch with transistor widths chosen to achieve effective rise and fall resistance equal to a unit (2/1) inverter. (5 points) c) Estimate the rise and fall propagation delays in terms of R and C of this gate driving h identical gates. Explain the relative transition times and values of the inputs to achieve these delays. (10 points) d) Estimate the best-case (contamination) delays of the gate. Explain the relative transition times and values of the inputs to achieve these delays. (10 points)

The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?