Consider a unity feedback system where the open-loop transfer function is given by kg(s)h(-, (sa ros)- and k(s+z) is contributed by a pd controller. assume that the parameter α is determined mathematically to be 1 1) sketch the root locus for z = α = 1 . determine the range of k for which the system is stable. 2) if the actual parameter α is 1 .5 instead, sketch qualitatively the "actual" root locus 3) explain why one should not cancel an unstable open-loop pole (ie, choose z =-a ) in designing a controller

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

Apressure vessel with an r/t 20 cannot be treated as thin walled vessel. a)-trune b)- false

Plan an experiment to measure the surface tension of a liquid similar to water. if necessary, review the ncfmf video surface tension for ideas. which method would be most suitable for use in an undergraduate laboratory? what experimental precision could be expected?