3.48 The response of an LTI system to input x(t) = e −3t cos(4t) u(t) is output y(t) = e −3t sin(4t) u(t). Compute each of the following: (a) Frequency response H(ω) (b) Poles and zeros of the system (c) LCCDE description of the system (d) Impulse response h(t)

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.