Question Solved1 Answer R1 = 9 kΩ R2 = 8 kΩ R3 = 5 kΩ VS4 = 4 V 1.) Calculate VO and then IO 2) What is the maximum voltage that VS4 may be increased to before the op-amp goes into positive saturation? You are required to find Vo and then lo in the ideal op-amp circuit shown. R 24 ΚΩ R2 +15 V 2 V R3 + 60 -15 v 12 ΚΩ 3 V 4V V. Vse 1 1 Figure of an Op-Amp Circuit

Pulsulull al lull Speeu. 115.5 /The speed of a separately excited motor is controlled by a single-phase semiconverter in Figure 15.12a. The field current is also controlled by a semiconverter and the field current is set to the maximum possible value. The ac supply voltage to the armature and field con- verter is one phase, 208 V, 60 Hz. The armature Pulsulull al lull Speeu. 115.5 /The speed of a separately excited motor is controlled by a single-phase semiconverter in Figure 15.12a. The field current is also controlled by a semiconverter and the field current is set to the maximum possible value. The ac supply voltage to the armature and field con- verter is one phase, 208 V, 60 Hz. The armature resistance is R = 0.12 12, the field resis- tance is R = 220 22, and the motor voltage constant is K = 1.055 V/A rad/s. The load torque is TL = 75 N·m at a speed of 700 rpm. The viscous friction and no-load losses are negligible. The armature and field currents are continuous and ripple free. Determine (a) the field current 1; (b) the delay angle of the converter in the armature circuit ac and (c) the input power factor (PF) of the armature circuit. The speed of a separately excited dc motor is controlled by a single-phase full-wave con- verter in Figure 15.13a. The field circuit is also controlled by a full converter and the field current is set to the maximum possible value. The ac supply voltage to the armature and field converters is one phase, 208 V, 60 Hz. The armature resistance is Ra = 0.50 , the field circuit resistance is Ry = 345 , and the motor voltage constant is K, = 0.71 V/A rad/s. The viscous friction and no-load losses are negligible. The armature and field currents are continuous and ripple free. If the delay angle of the armature converter is a = 45° and the armature current of the motor is I = 55 A, determine (a) the torque developed by the motor Td (b) the speed w, and (c) the input PF of the drive. 15.8 The speed of a 20-hp. 300-V. 1800-rpm separately excited de motor is controlled by a three-phase full-converter drive. The field current is also controlled by a three-phase full-converter and is set to the maximum possible value. The ac input is three-phase, Y connected, 208 V. 60 Hz. The armature resistance is R, = 0.35 12, the field resistance is R = 250 A. and the motor voltage constant is K = 1.15 VIA rad/s. The armature and field currents are continuous and ripple free. The viscous friction and no-load losses are negligible. Determine (a) the delay angle of the armature converter an, if the motor sup plies the rated power at the rated speed: (b) the no-load speed if the delay angles are the same as in (a) and the armature current at no-load is 10% of the rated value; and (c) the speed regulation

Air at 80 degrees Fahrenheit and 14.7 psia with a mass flow rate of 0.6 lbm/sec enters a compressor and leaves at 70 psia and 430 degrees Fahrenheit through an exit area of 0.007 ft^2.  The measured heat interaction rate with the 80 degree Fahrenheit factory room is 3 Btu/sec.  Use constant Cp = 0.24 Btu/lbm oF a) Calculate the compressor work rate.   b) Compute the entropy generation rate for the overall process.  

1 Required information A 20-mm-diameter rod made of the same material as rods AC and AD in the truss shown was tested to failure and an ultimate load of 105 kN was recorded. Use a factor of safety of 3.0. Part 1 of 2 1,5 m D B 3 m -3 m 48 kN 48 kN Determine the required diameter of rod AC. The required diameter of rod AC is mm.

Required information A 20-mm-diameter rod made of the same material as rods AC and AD in the truss shown was tested to failure and an ultimate load of 125 kN was recorded. Use a factor of safety of 3.0. 1.5 m 3 m 48 KN 48 KN Determine the required diameter of rod AC. The required diameter of rod AC is mm

thermo 2 help plz Air, at \( 80^{\circ} \mathrm{F} \) and \( 14.7 \) psia with a mass flow rate of \( 0.6 \mathrm{Ibrm} / \mathrm{sec} \) enters a compressor and leaves at 70 psia and \( 430^{\circ} \) F through an exit of area 0007 . th \( ^{2} \). The measured heat internction rate with the \( 80^{\circ} \mathrm{F} \) factory room is \( ₹ \mathrm{Bth} / \mathrm{sec} \). Use constant \( \mathrm{C}_{p}=0.24 \mathrm{Btw}_{\mathrm{f}} \mathrm{b}_{\mathrm{m}}{ }^{\circ \mathrm{F}} \) a. Calculate the compressor work rate, W. b. Compute the entropy generation rate for the overall process.

Required information Problem 15-4A (Algo) Preparing job cost sheets, recording costs, preparing inventory ledger accounts LO P1, P2, P3 [The following information applies to the questions displayed below] Watercraft's predetermined overhead rate is 200% of direct labor. Information on the company's production activities during May follows. a. Purchased raw Required information Problem 15-4A (Algo) Preparing job cost sheets, recording costs, preparing inventory ledger accounts LO P1, P2, P3 [The following information applies to the questions displayed below] Watercraft's predetermined overhead rate is 200% of direct labor. Information on the company's production activities during May follows. a. Purchased raw materials on credit, $220,000 b. Materials requisitions record use of the following materials for the month. Job 136 Job 137 Job 138 Job 139 Job 140 Total direct materials Indirect materials Total materials requisitions Job 136 Job 137 30h 138 300 119 $ 49,500 32,500 19,400 c. Time tickets record use of the following labor for the month. These wages were paid in cash Job 140 Total direct labor Indirect labor Total labor cost 23,200 6,400 131,000 20,500 $ 151,500 $ 12,300 10,500 37,900 39,200 4,000 101,900 14,500 $ 128,400 Journal entry worksheet < 3 Record raw material purchases on credit. Note: Enter debits before credits. Transaction Record entry 4 Raw materials inventory Accounts payable General Journal 5 Clear entry 6 7 8 Debit 220,000 ***** Credit 11 220,000 View general journal >