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why citizenship is important to a nation?
make a reflection paper about citizenship.

 

1. The space truss is shown in the figure: Z P = 600 lb D 8 ft 4 ft 2t it B a. Determine the reaction at C in lbs. (1pt) b. Determine the reaction at B in lbs. (1pt) c. Determine the axial force on member CD in lbs. (1pt) d. 2. Three concurrent forces have the following magnitudes and passes through (2, 3, -2) and the indicated points: P = 500N (4, 3, 5); Q = 200N (6, -3, -5), and F = 600N (-3, 6,-4). a. Determine the y-component of the resultant force in Newtons. (1pt) b. Determine the z-component of the resultant force in Newtons. (1pt) c. Determine the resultant of the three forces in Newtons. (1pt) 3. The plate shown carries a load of 10 kN applied at point E, and is supported in a horizontal position by three vertical cables attached at A, B, and C. ? 20 KN 30 cm 60 cm 40 cm 60 cm a. Determine the tension in cable A in kN. (1pt) b. Determine the tension in cable B in kN. (1 pt) c. Determine the tension in cable C in kN. (1pt)

 

An object of 100 N weight suspended from the end of a vertical spring of negligible mass stretches it to 0.16m. If the position of the object at any timet is given by to cos (t). . determine the kinetic energy of the system at ir (accuracy to 2001

Q1: A digital system has 2 data inputs (M and N) and 1 control input of 2-bit size (D). Model the system using concurrent signal assignment statements to implement the logical function R as shown in table1. (25 Marks) Table 1 DO D1 0 0 0 1 R (M EXORN) (M NAND N) (M OR N) (M EXNOR N) 1 1 0 1

[13] Beta sheet shows a negative band at 218 nm, the values of A? is 8 M cm-?. Find the . Molar ellipticity [0] in degrees cm2 dmol-1 and Mean residue ellipticity [O]MR. . Given the protein concentration is 1mg/ml.

2) (30 pnt.) Analyze the following system for the stability x1 = -X1 + x2 x2 = -X2 Hint: V(x) = x1 +7 1 FX2°

 

Prob. 1 write the disadvantages of single phase half wave uncontrolled and controlled rectifiers.(SO p) Prob.2- Write the following semiconductor materials including the structure of the element, symbols used, operating characteristics, nominal values, converter types used and reference list used.(50 p) a- "n and p type material, b- diode, C- Thyristor, d- Triac, the gate turnoff thyristor (GTO e-

Time QUESTION 1 Arigid bar ABCD is supported by a steel bar of length 2386 mm at A and a brass bar of length 3818 mm at Candit is loaded with a 512 KN load at Band a 254 KN load at D. Given that the temperature of the steel is increased by 35°C and the temperature of the brass bar is decreased by 24°C A,- 762 mm"E.-204 GPa, a, 11.5*10*C: A +1403 mm: E94 GPa; 4) - 20*10*°C; F E Brass Steel °1 P1 A C D B P2 to 1200 mm 2400 mm 1200 mm La Determine the axial force P, in the steel bar? 1.b. Determine the axial force Py in the brass bar? 1.c. Determine the deformation of the steel bar 6?

 

a . 5. A reservoir (zk) with total capacity of a volume units of water has, during each day, either a net inflow of two units with probability p or a net outflow of one unit with probability q. If the reservoir is full or nearly full, any excess inflow is lost in an overflow. (a) Derive difference equations in detail for this model for uk , k = 1, 2, ... a, the probability that the reservoir will eventually become empty given that it initially contains k units (b) By applying the results in (a), deduce that ua = Ua-1 & ua = Ua-2 (c) For p=1/3, q=2/3, solve the difference equations with boundary conditions. (d) Show that the reservoir is certain to be empty at some time in the future.

Question 5 In polar RZ format for coding, symbol 'O' is represented by A Zero voltage B Negative voltage C Pulse is transmitted for half the duration D Both (b) and (c) are correct Question 6 Block coding is performed at the same time as the encoding A True B False Question 7 NRZ-I does not have a DC component problem A True B False