MATERIALS SCIENCE AND ENGINEERING -PACK
10th Edition
ISBN: 9781119721857
Author: Callister
Publisher: WILEY
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Chapter 8, Problem 44QAP
To determine
The three metallurgical/processing techniques to enhance the creep resistance of metal alloys:
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2.52. The step response s(t) of a continuous-time LTI system is given by
s(1) = [cos wol ]u(1)
Find the impulse response h(t) of the system.
Ans. h(t)=8(1) - wo[sin w₁t]u(t)
2.48. Show that if y(t) = x(t)* h(t), then
y' (t) = x' (1) * h(t) = x(t) * h'(t)
Hint: Differentiate Eqs. (2.6) and (2.10) with respect to t.
2.49.
Show that
x(1) * 8'(t) = x(t)
Hint: Use the result from Prob. 2.48 and Eq. (2.58).
2.47. Compute the convolution sum y[n] = x[n]+h[n] of the following pairs of sequences:
(a) x[n] = u[n], h[n] = 2"u[n]
(b) x[n]=u[n]-u[n-N], h[n]=a"u[n], 0 < a <1
(c) x[n]=()"u[n], h[n] = 8[n] - 8[n-1]
Chapter 8 Solutions
MATERIALS SCIENCE AND ENGINEERING -PACK
Ch. 8 - Prob. 1QAPCh. 8 - Prob. 2QAPCh. 8 - Prob. 3QAPCh. 8 - Prob. 4QAPCh. 8 - Prob. 5QAPCh. 8 - Prob. 6QAPCh. 8 - Prob. 7QAPCh. 8 - Prob. 8QAPCh. 8 - Prob. 9QAPCh. 8 - Prob. 10QAP
Ch. 8 - Prob. 11QAPCh. 8 - Prob. 12QAPCh. 8 - Prob. 13QAPCh. 8 - Prob. 14QAPCh. 8 - Prob. 15QAPCh. 8 - Prob. 16QAPCh. 8 - Prob. 17QAPCh. 8 - Prob. 18QAPCh. 8 - Prob. 19QAPCh. 8 - Prob. 20QAPCh. 8 - Prob. 21QAPCh. 8 - Prob. 22QAPCh. 8 - Prob. 23QAPCh. 8 - Prob. 24QAPCh. 8 - Prob. 25QAPCh. 8 - Prob. 26QAPCh. 8 - Prob. 27QAPCh. 8 - Prob. 28QAPCh. 8 - Prob. 29QAPCh. 8 - Prob. 30QAPCh. 8 - Prob. 31QAPCh. 8 - Prob. 32QAPCh. 8 - Prob. 33QAPCh. 8 - Prob. 34QAPCh. 8 - Prob. 35QAPCh. 8 - Prob. 36QAPCh. 8 - Prob. 37QAPCh. 8 - Prob. 38QAPCh. 8 - Prob. 40QAPCh. 8 - Prob. 41QAPCh. 8 - Prob. 42QAPCh. 8 - Prob. 43QAPCh. 8 - Prob. 44QAPCh. 8 - Prob. 1DPCh. 8 - Prob. 2DPCh. 8 - Prob. 3DPCh. 8 - Prob. 4DPCh. 8 - Prob. 5DPCh. 8 - Prob. 6DPCh. 8 - Prob. 7DPCh. 8 - Prob. 8DPCh. 8 - Prob. 1SSPCh. 8 - Prob. 2SSPCh. 8 - Prob. 1FEQPCh. 8 - Prob. 2FEQPCh. 8 - Prob. 3FEQPCh. 8 - Prob. 4FEQP
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- 2.55. Consider a discrete-time LTI system with impulse response h[n] given by Is this system memoryless? Ans. No, the system has memory. h[n] = [n-1]arrow_forwardSubject: Database management system Explain in easy way with write handwritten note a. What is lossy decomposition? Check whether the following decompositions are lossy or lossless. (i) Let R=ABCD, R1 = AD, R2 = AB, R3 = BE, R4 = CDE, R5 = AE, F={ A->C, B- >C, C->D, DE->C, CE->A} (ii) R (XYZWQ), FD= {X->Z, Y->Z, Z->W, WQ->Z, ZQ-> X, R1 (XW), R2 (XY), R3 (YQ) , R4 (ZWQ), R5 (XQ) b. Eliminate redundant FDs from (i) F={X->Y, Y->X, Y->Z, Z->Y, X->Z, Z->X} (ii) F = {X->YZ, ZW->P, P->Z, W->XPQ, XYQ, YW, WQ ->YZ}arrow_forwardPlease don't use AIarrow_forward
- "4. The load impedance connected to the secondary winding of the ideal transformer in the following circuit consists of a resistance of 237.5m2 in series with an inductor of 125µH. If the sinusoidal voltage source v, is generating the voltage 2500 cos(400t) V, calculate the steady-state equations for: (a) 21. (b) v1. (c) i₂, and (d) v2." 08 0,255 mH 237,5 m2 10:1 01 - Ideal 02 125 pharrow_forward2.55. Consider a discrete-time LTI system with impulse response h[n] given by h[n]=8[n-1] Is this system memoryless? Ans. No, the system has memory.arrow_forward"1. Formulate the matrix system to find the voltages and currents of the transformer in the following circuit. Hint: Use KVL (Kirchhoff's Voltage Law) in each winding of the transformer and use the voltage and current relationships." RT www pNp Ns Rc Vp idealarrow_forward
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