In the circuit below, the small-signal source vs(t) = 10 cos(100t) mV is applied to the input of the amplifier circuit consisting of MOSFETs Q1 and Q2 that have been biased to operate in saturation. Assume the transistors have Vt = 2 V and kn = 2 mA/V2. 5) Determine the amplifier configurations of Q1 and Q2 and theirtransconductances gm1 and gm2. 6) Sketch the small-signal circuit using the pi model for Q1 and T model for Q2.7) Estimate the small-signal current i(t) and voltage v(t) at the drain of Q1.8) Estimate the voltage vO(t) at the drain of Q2.5kΩ1mA

Fluids at rest possess no flow energy. 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.

Steam at a pressure of 100 kpa and a quality of 50% initially fills a rigid vessel having a volume of 0.5 m^3. the steam is then heated, causing the pressure in the vessel to rise to 150 kpa. determine: i. the mass of the steam in the vessel. ii. the temperature and quality of the steam after the heating process. ii the mass of the vapour, mg and liquid, m in the vessel after the heating process. if the steam in the vessel is now further heated, what would the pressure and temperature in the vessel be when all steam has turned into saturated vapour? b. sketch the processes in part (a) and part (b) on p-v and t-v diagrams, indicating clearly the temperatures, pressures and the paths. c. (0.59kg, 111.4°c, 73%, 0.4307kg, 0.1 593kg, 2.11 bar, 121.84°c)