Materials Science And Engineering
10th Edition
ISBN: 9781119405498
Author: Callister, William D., Jr, RETHWISCH, David G., Jr., 1940- Author.
Publisher: Wiley,
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Solve and select the correct answer:
2. For a random variable X with pdf: p(x)
value of x is
=
119
10
for -5≤x≤5. The mean
(a) -75
(b) 10
(c) 0
(d) 75
3. Is the matrix A = = [1] orthogonal? Find the rank of A?
0
(a) YES, -1
(b) NO, 2
(c) YES, 2
(d) NO, -1
4. L{et sin(3t)u(t)) = (a)
s-3
(s-2)²+9
2
(b)
(5-3)² (c)
(s-3)²+4
S-2
3
(s-2)²+9
(d) (5-2)²+9
=
5. Given that x is a constant. Choose all the correct solutions for [∞ (AB)] =
(a) (AB)T (b) x ATBT
(c) α BTAT
(d) x (AB)T
Uppgift 2 (9p)
I77777
20 kN
10 kN/m
4
[m]
2
2
Bestäm tvärkrafts- och momentdiagram för balken i figuren ovan. Extrempunkter ska anges
med både läge och värde i diagrammen.
DO NOT WANT AI WILL REJECT
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- 3. Roughly sketch the root locus for the following locations of open-loop poles and zeros. You just need to show the shape of the root locus; you do not calculate the asymptote, break-in, and break-away points. ☑ (a) (b) ☑ Φ ① $3 (c)arrow_forward**Problem 8-45.** The man has a mass of 60 kg and the crate has a mass of 100 kg. If the coefficient of static friction between his shoes and the ground is \( \mu_s = 0.4 \) and between the crate and the ground is \( \mu_c = 0.3 \), determine if the man is able to move the crate using the rope-and-pulley system shown. **Diagram Explanation:** The diagram illustrates a scenario where a man is attempting to pull a crate using a rope-and-pulley system. The setup is as follows: - **Crate (C):** Positioned on the ground with a rope attached. - **Rope:** Connects the crate to a pulley system and extends to the man. - **Pulley on Tree:** The rope runs over a pulley mounted on a tree which redirects the rope. - **Angles:** - The rope between the crate and tree forms a \(30^\circ\) angle with the horizontal. - The rope between the tree and the man makes a \(45^\circ\) angle with the horizontal. - **Man (A):** Pulling on the rope with the intention of moving the crate. This arrangement tests the…arrow_forwardDO NOT WANT AI WILL REJECTarrow_forward
- a) A 14-ft. tall and12-ft.-8-in. long fully grouted reinforced masonry wall is constructed of 8-in.CMU. It is to be analyzed for out-of-plane loading. Construct thenP -nM curves for the wallwith the following three vertical reinforcement scenarios: (1) 10 No. 6 bars at 16 in. spacing,(2) 10 No. 5 bars at 16 in. spacing, and (3) 7 No. 4 bars at 24 in. spacing. The steel is Grade60 with a modulus of elasticity of 29,000 ksi, and the masonry has a compressive strength of2,000 psi. You may use Excel or Matlab to construct the curves. Also, show the maximumnPallowed by the code for each case.(b) For each of the above reinforcement scenarios, determine the maximum axial loads that arepermitted for the tension-controlled condition and transition condition.(c) Discuss how the amount of vertical reinforcement affects thenPn-Mn curve.arrow_forward1 6. Root locus for a closed-loop system with L(s) is shown below. s(s+4)(s+6)arrow_forwardDO NOT NEED AI WILL REJECTarrow_forward
- please solve this problem what the problem are asking to solve please explain step by step and give me the correct answerarrow_forwardplease help me to solve this problem step by steparrow_forward5. Sketch the root locus for L(s) = s+10 using rules 1, 2, and 4. For rule 4, you need to s(s+6) find the break-in and break-away points.arrow_forward
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