Calculate the ft for a GaAs FET assuming the drift velocity is the saturated electron velocity : a. for gate lengths of 0.05um, 0.1um, 0.15um, 0.25um,0.5um, 1.0um. b. If the criteria for designing an amplifier is that the short circuit current gain needs to be 12dB, what is the highest frequency that each of these gate lengths could be used

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.

Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk

Which of the following controllers anticipates the future from the slope of errors over time? a)-proportional b)-on/off c)-integral d)-derivative.