Engineering Fundamentals: An Introduction to Engineering
6th Edition
ISBN: 9780357391273
Author: Saeed Moaveni
Publisher: Cengage Learning US
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4-You are making a bookshelf (shown below) to carry books that range from 8½"
to 11" in height and would take up 29" of space along the length. The material is
wood having a Young's Modulus of 3.66 ksi, thickness of 3/8", and width of 12".
You want to find the maximum vertical deflection of the bookshelf. The vertical
deflection of the shelf is given by:
-0.67665 x10 8x4 -0.26689x105 x3 +0.12748x10³ x² -0.018057=0
x
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- The difference in water surface levels in two tanks, which are connected by three pipes in series of lengths 300 m, 170 m, and 210 m, having diameters 300 mm, 200 mm, and 400 mm, respectively, is 12 m. Determine the rate of flow of water if coefficients of friction are 0.005, 0.0052, and 0.0048, respectively. Determine the discharge and velocity in each pipe, considering the minor losses and neglecting minor losses.arrow_forward3 BAT For an reinforced concrete two-way slab shown in figure under the load (P). (the slab continuous over all edges - all sides are fixed), Determine (By using yield line theory): A- Draw the Yield line Pattern B- Determine the moment m C- Find The required flexural steel to resist the loads causing the slab to collapse if P = 200 KN, f=28 MPa, fy = 420 MPa d = 120 mm. Use 10 mm bars. (Pmin = 0.002) 6m 8m >2m-)) 3marrow_forwardREINFORCED CONCRETE DESIGNANALYSIS OF SINGLY REINFORCED BEAMS (STRENGTH DESIGN METHOD)Direction:Solution must be completeUse ballpen/inkpenAnswer in two decimal placesBox your final answerarrow_forward
- E. Estimate the required air flow rate for the new activated sludge plant at Camp Verde Problems 23-3 — 23-823-11, and 23-14 B). Use the following assumptions in preparing the estimate: Clean water correction, a 0.70 . Salinity correction, ẞ= 0.95 . Fouling factor = 0.8 Summer wastewater temperature 22°C • Atmospheric pressure 101.325 kPa .Elevation 2,135 m Depth of aerator = 4.5 m Operating DO = 2.0 mg/L Percent oxygen leaving aeration tank - 19% Manufacturer's SOTR = 650 kg/d • Manufacturer's air flow rate at standard conditions 20 m3/d aerator 23-3. The town of Camp Verde has been directed to upgrade its primary WWTP to a secondary plant that can meet an effluent standard of 25.0 mg/L BOD5 and 30 mg/L suspended solids. They have se- lected a completely mixed activated sludge system for the upgrade. The existing primary treatment plant has a flow rate of 2,506 m³/d. The effluent from the primary tank has a BOD5 of 240 mg/L. Using the following assumptions, estimate the required…arrow_forwardOnly expert should attempt,I don't need AI solutions, because it's always incorrect pleasearrow_forwardThe single degree of freedom (SDOF) system that you studied under free vibration in Assignment #3 - Laboratory Component has been subjected to a strong ground motion. The acceleration at the base (excitation) and the acceleration at the roof (response) of the SDOF system was recorded with sampling rate 50 Hz (50 samples per second, or dt= 0.02 seconds). The file ElCentro.txt includes the two columns of acceleration data. The first column lists the acceleration at the base of the SDOF system. The second column lists the acceleration at the roof of the SDOF system. (a) Plot the time histories of the recorded accelerations at the base and at the roof of the SDOF system. (b) Compute the acceleration, velocity and displacement time histories of the roof of the SDOF system subjected to the recorded base acceleration using the Central Difference method. Plot the accel- eration, velocity and displacement time histories. Plot the restoring force, the damping force, and the inertia force time…arrow_forward
- Using the method of virtual work, for the truss shown below, determine the horizontal displacement of joint A. Take A = 180 mm2 and E = 200 GPa for each member.arrow_forwardA gravity retaining wall is shown in the figure below. Calculate the factor of safety with respect to overturning and sliding, given the following data: Wall dimensions: H = 6 m, x₁ = 0.6 m, x2 = 2 m, x3 = 2m, x4 0.5 m, x5 = 0.75 m, x6 = 0.8 m, D= 1.5 m Soil properties: 71 = 14 kN/m³, ₁ = 32°, 72 = 18 kN/m³, 2=22°, c₂ = 40 kN/m² Y₁ c₁ = 0 H Φί x5 x6 Use the Rankine active earth pressure in your calculation. Use Yconcrete = 23.08 kN/m³. Also, use k₁ = k₂ = 2/3 and Pp = 0 in the equation FS (sliding) (ΣV) tan(k102) + Bk2c2 + Pp Pa cos a (Enter your answers to three significant figures.) FS (overturning) FS (sliding) =arrow_forwardFor the cantilever retaining wall shown in the figure below, let the following data be given: Wall dimensions: H = 8 m, x1 = 0.4 m, x2 = 0.6 m, x3 = 1.5 m, x4 3.5 m, x5 = 0.96 m, D= 1.75 m, a = 10° Soil properties: 71 = 14.8 kN/m³, ₁ = 32°, Y₂ = 1 2 = 28°, c = 30 kN/m² 17.6 kN/m³, The value of Ka is 0.3210. For 2 = 28°: N = 25.80; N₁ = 14.72; N₁ = 16.72. c=0 H Χς Calculate the factor of safety with respect to overturning, sliding, and bearing capacity. Use Yconcrete = 21.58 kN/m³. Also, use k₁ = k₂ = 2/3 and P = 0 in the equation FS (sliding) (ΣV) tan(k₁₂) + Bk2C + Pp Pa cosa (Enter your answers to three significant figures.) FS (overturning) FS (sliding) FS (bearing) =arrow_forward
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