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Consider the system in the following diagram, where there is a viscous element B2, K1 is a translational element, and K2 is a rotational element. Let t(t) be the applied torque, x1 the displacement of M from rest, and u the angular displacement of the element J from rest (i.e., when the springs are neither stretched or compressed). The pulley has no inertia or friction, and the cable does not stretch.
(a) Write the differential equations that describe the system.
(b) Write the state variable equations that describe the system.
Determine the motor current and speed when the diverter-circuit resistance is made equal to the series-field resistance. Neglect saturation and the voltage drops across the series- field resistance as well as the armature resistance.
Calculate the equilibrium conversion, then redo parts (a) through (c) to achieve a concentration that is 90% of the calculated equilibrium conversion.
Calculate the mass percent of magnesium chloride in the mixture. Determine the minimum volume of silver nitrate that must have been added to ensure complete formation of the precipitate.
Steam at 100°C is passed into a condenser at a rate of 500 kg/h and leaves as water at 60°C. If the condenser is supplied with cooling water which enters at 20°C and leaves at 40°C, calculate:- how much heat per hour is extracted from the steam.
Compute the effective armature ac resistance in per unit and in ohms per phase at 25°C.
If the motor is operating on load with a power angle of -20°, and the excitation is adjusted so that the excitation voltage is equal in magnitude to the terminal voltage, determine the armature current and the power factor of the motor.
Mass of Compound Needed to Prepare 1 oz of a 10% Solution Hydroquinone, USP
Find the per-unit voltage regulation when the transformer is supplying full load at 110 V and 0.9 lagging power factor.
1. A newly constructed power plant proposes to burn coal with a sulfur content of (a) 1.8 and (b) 2.4 percent by weight. If the plant is to meet the new source review performance standard (see attached CFR new source regulation), what percent of SO 2..
Calculate the parameters of the equivalent circuit shown in Figure 13.2.5(c).
Crude dichlorobenzene is pumped from a storage tank to a distillation column. The tank is blanketed with nitrogen and the pressure above the liquid surface is held constant at 0.1 bar gauge pressure. The minimum depth of liquid in the tank is 1 m.
What is the optimum practical shape for an above-ground dwelling to minimize the heat losses through the building fabric? When is (or was) this optimum shape used? Why is this optimum shape seldom used in richer societies?
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