Chapter 4, Problem 33QAP

15 ww 22 R2 ли i4 1+ V4 R1 ww R3 Solve for current i4 using superposition where R1 = 902, R2 = 36052, R3 = 360 V, and 15 = 5 A. 27052, V4 = i4 due to voltage source (V4) alone: Number A i4 due to current source (15) alone: Number A i4 = Number

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The storm sewer system shown below receives storm water from five subareas (A, B, C, D, E,F and G). For each subarea; the drainage area, the longest flow path length, the slope of ground surface and runoff coefficient are as given in Table I. Estimate storm water flowrate received by each of the four inlets. Assume the area is dense residential area. The diameters and lengths of sewer given in table Sewer line Diameter Length (m) From To (mm) I1 13 300 136 12 13 300 110 13 14 400 120 zone Area (m²) L Slope Runoff (m) of ground surface coefficient A 8000 75.8 0.01 0.8 B 12000 127.3 0.0081 0.7 C 12000 121.2 0.012 0.4 D 20000 194 0.01 0.6 E 20000 200 0.01 0.6 F 22000 220 0.01 0.6 G 21000 215 0.01 0.6 B A E w 12 13 F 14 Plan layout

PV Array Va DC/DC Converter Control Circuit ис V R Fig. 2. Principle of using DC/DC converter to implement electronic load [2] 4.5 1.5 -0.5 SEPIC Converters in SOM 0 0.2 0.4 0.6 0.8 Time SEPIC Converters in SOM M 0 0.2 0.4 0.6 0.8 Time Current I-V Curve (a) 8888888 P-V Curve 0 20 40 60 80 Voltage 0 20 40 60 Voltage 80 (b) Fig. 3. Experimental results of I-V and P-V curves [2]

11.6 The motion of a particle is defined by the relation x = 2t3 - 15t² + 24t4, where x is expressed in meters and t in seconds. Deter- mine (a) when the velocity is zero, (b) the position and the total distance traveled when the acceleration is zero.

R1 ww + R3 15+ www R2 R4 ww With the circuit diagram shown above and the values of the circuit elements listed below, find i1, 12, v1, and v2. Is = 10A, R1 = 7 ohms, R2 = 9 ohms, R3 = 7 ohms, R4 = 8 ohms (a) i1 = Number A (b) 12 = Number A (c) v1 = Number V (d) v2 = Number V

Ratio of depth to diameter d/D Q3 -A sanitary sewer is used to carry 0.12m³/sec when flowing full and conditions о 1.0 Values of fu 1.1 1.2 1.3 0.9 0.8 Manning's n 0.7 0.6 0.5 0.4 0.3 0.2 0.1 Discharge Velocity Hydraulic properties of cicular sewers 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 Hydraulic elements and full such as minimum flow velocity must be applied. Determine the commercial pipe size that must be used and the grade

Find the equivalent resistance between terminals a and b in the circuit below where R₁ =6 N, R₂=12, R3=22, R4=22, and R5=150. 22 R2 R1 R5 oa R3 R4 ob Req= Number Ω

A Thévenin equivalent can also be determined from measurements made at the pair of terminals of interest. Assume the following measurements were made at the terminals a,b in the figure below. When a 25 k2 resistor is connected to the terminals a,b, the voltage is measured and found to be 105 V. When a 2 k resistor is connected to the terminals a,b, the voltage is measured and found to be 13 V. Find the Thévenin equivalent of the network with respect to the terminals a,b. Linear resistive network with independent and dependent sources RTh = Number ΚΩ VTh= Number V a b