Assume the two op amps are ideal. (a) Write an equation for the output voltage, vo, in terms of the input voltage, vi , and the three resistors R1, R2, and R3. [5 points] (b) Select resistors R1, R2, and R3 such that |vo| = 100|vi |. [5 points] (c) Suppose both op amps have ±25 V supply voltages and the resistors satisfy part (b). What is the maximum input voltage for which this amplifier remains in the linear region (i. e., the op amps do not saturate)? [5 points] (d) What sort of amplifier is this (inverting, noninverting, neither)?

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.

Calculate the bore of a cylinder that has a stroke of 18 inches and an extension time of 6 seconds at a flow rate of 4 gal/min.