EBK ESSENTIAL ENVIRONMENT
5th Edition
ISBN: 8220100799693
Author: Laposata
Publisher: PEARSON
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Chapter 7, Problem 8TYC
To determine
To describe: The economic benefits of aquaculture and its negative impact on environment.
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14.1 A beam of rectangular cross section is 125 mm wide
and 200 mm deep. If the maximum bending moment
is 28.5 kN⚫m, determine (a) the maximum tensile and
compressive bending stress, and (b) the bending stress
25 mm from the top of the section.
14.2 A rectangular beam 50 mm wide and 100 mm deep is
subjected to bending. What bending moment will
cause a maximum bending stress of 137.9 MN/m²
(MPa)?
14.3 Determine the bending moment in a rectangular
beam 3 in. wide and 6 in. deep if the maximum bend-
ing stress is 15,000 psi.
9.56 Using JK flip-flops, design a synchronous counter that counts in the sequence
1, 3, 0, 2, 1, ... The counter counts only when its enable input x is equal to 1;
otherwise, the counter is idle.
B3. For the Howe truss below, assume all members are pin connected and take P₁ = 5 kN and
P₂ = 10 kN:
a. Determine all member forces (16 pts).
b. Use a section cut to verify your answers for members GF, GD, and CD (4 Pts)
P₁
A
H
500
8
0000
B
0000]
2 m
m
2 m
3 m
B
E
D
m
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- 9.65 Using T flip-flops, design a synchronous counter that counts in the sequence 0, 2, 4, 6, 0, ... The counter counts only when its enable input x is equal to 1; otherwise, the counter is idle.arrow_forward2 Using D flip-flops, design a synchronous counter that counts in the sequence 1, 4, 7, 1, The counter counts only when its enable input x is equal to 1; otherwise, the counter is idle.arrow_forwardQ1: Write a VHDL code to implement the finite state machine described in the state diagram shown below. Clk D 0 CIK Q D 0 Cik Q =arrow_forward
- Q1: Consider the finite state machine logic implementation in Fig. shown below: Construct the state diagram. Repeat the circuit design using j-k flip flop. r" Clk Y D' Y, Clk Q D Clk 10 0 22 3'2arrow_forwardQ: Write a VHDL code to implement the finite state machine described in the state diagram shown below. T 2 Clk Q Clk T₂ 0 la Clk T3 Q Cik 0arrow_forward1 Revolute four-bar mechanism, AB=60mm, BC=130mm, CD=140mm, AD=200mm,arrow_forwardDo you happen to know what is the complete circuit?arrow_forwardb) Draw the magnitude and phase bode plot c) Given Cdb=0.02pF, how will the frequency response change, draw the resulting magnitude and phase bode plotplz help me to solve part b and c.arrow_forwardCORRECT AND DETAILED HANDWRITTEN SOLUTION WITH FBD ONLY. I WILL UPVOTE THANK YOU. CORRECT ANSWER IS ALREADY PROVIDED. The roof truss shown carries roof loads, where P = 10 kN. The truss is consisting of circular arcs top andbottom chords with radii R + h and R, respectively.Given: h = 1.2 m, R = 10 m, s = 2 m.Allowable member stresses:Tension = 250 MPaCompression = 180 MPa1. If member KL has square section, determine the minimum dimension (mm).2. If member KL has circular section, determine the minimum diameter (mm).3. If member GH has circular section, determine the minimum diameter (mm).ANSWERS: (1) 31.73 mm; (2) 35.81 mm; (3) 18.49 mmarrow_forwardCORRECT AND DETAILED HANDWRITTEN SOLUTION WITH FBD ONLY. I WILL UPVOTE THANK YOU. CORRECT ANSWER IS ALREADY PROVIDED. The cantilevered spandrel beam shown whose depth tapers from d1 to d2, has a constant width of 120mm. It carries a triangularly distributed end reaction.Given: d1 = 600 mm, d2 = 120 mm, L = 1 m, w = 100 kN/m1. Calculate the maximum flexural stress at the support, in kN-m.2. Determine the distance (m), from the free end, of the section with maximum flexural stress.3. Determine the maximum flexural stress in the beam, in MPa.ANSWERS: (1) 4.630 MPa; (2) 905.8688 m; (3) 4.65 MPaarrow_forwardCORRECT AND DETAILED HANDWRITTEN SOLUTION WITH FBD ONLY. I WILL UPVOTE THANK YOU. CORRECT ANSWER IS ALREADY PROVIDED. A concrete wall retains water as shown. Assume that the wall is fixed at the base. Given: H = 3 m, t = 0.5m, Concrete unit weight = 23 kN/m3Unit weight of water = 9.81 kN/m3(Hint: The pressure of water is linearly increasing from the surface to the bottom with intensity 9.81d.)1. Find the maximum compressive stress (MPa) at the base of the wall if the water reaches the top.2. If the maximum compressive stress at the base of the wall is not to exceed 0.40 MPa, what is the maximum allowable depth(m) of the water?3. If the tensile stress at the base is zero, what is the maximum allowable depth (m) of the water?ANSWERS: (1) 1.13 MPa, (2) 2.0 m, (3) 1.20 marrow_forwardCORRECT AND DETAILED HANDWRITTEN SOLUTION WITH FBD ONLY. I WILL UPVOTE THANK YOU. CORRECT ANSWER IS ALREADY PROVIDED. A short plate is attached to the center of the shaft as shown. The bottom of the shaft is fixed to the ground.Given: a = 75 mm, h = 125 mm, D = 38 mmP1 = 24 kN, P2 = 28 kN1. Calculate the maximum torsional stress in the shaft, in MPa.2. Calculate the maximum flexural stress in the shaft, in MPa.3. Calculate the maximum horizontal shear stress in the shaft, in MPa.ANSWERS: (1) 167.07 MPa; (2) 679.77 MPa; (3) 28.22 MPaarrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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