find v1,v2,p1,p2 and reach x.
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Physics
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- A materila has a modulus of elasticity (E=17 Mpa) and a poissons ratio of 0.27. what is the approximate value of the shear modulus, G?A spherical tank of diameter 1.2 m and wall thickness 50 mm contains compressed air at a pressure of 17 MPa. What is the value of tensile stress? (Assume E = 210 GPa, v = 0.29)For fc' above 28 Mpa, Beta1 shall be reduced linearly at a rate of 0.05 for each ____ 7 psi 1000 psi 0.05 Mpa 3000 psi
- How would I find torsion of a hollow foam tube if I'm only given Angle of twist=70 degrees L=20 meters Outside diameter=Do=7 meters Inside diameter=Di=2.5 meters J=(pi/2)(ro^4-ri^4) Note:shear Modulus is unknown because I didn't know what material the foam isA cap plate at the bottom of the brace distributes the load P = 660 kN to four flange plates (thickness, tf = 22.5 mm each) through a pin (diameter, dp = 55 mm) to two gusset plates (thickness, tg = 34 mm).[FS = 1.5 , σu = 250 MPa, τu = 400 MPa] Determine the shear stress in the pin? The answer in MPa Determine the bearing stresses in the gusset plates? In MPa Determine the bearing stresses in the flange plates? In MPa Determine the maximum allowable load P that can be applied to this connection if the required factor of safety is FS and theultimate normal and shear stresses in the plates are llimited toσu and τu, respectively?A point-focus concentrating solar collector comprising 490 heliostats and a central receiver atop a tall solar tower (see Figure 8.5) is operating under the following conditions: • Beam solar radiation flux incident on the heliostat Ib,N = 830 W/m2 • Single heliostat surface area Ah = 120 m2 • Heliostat–receiver concentration ratio C = 520 • Optical efficiency of the heliostat–receiver system ηopt = 0.8 • Effective overall heat loss coefficient of the absorber/receiver Uc.e = 35 W/m2K • HTF: molten salt • HTF temperatures at the receiver inlet and outlet Tin = 333°C and Tout = 565°C • Ambient temperature Ta = 36°C • HTF specific heat c = 1.03 kJ/(kg K) Calculate • Total aperture area of the heliostat field • Collector useful heat output rate
- A thick-wall underwater pipe is placed at 20m below sea level. The pipe is carryingcompressed natural gas with pressure of 50 MPa. The pipe has 115mm outer diameter andmade of 316 stainless steel with yield strength of 205 MPa. The density of sea water could betaken as 1029 kg/m3. Find out:a) What is the resultant outer pressure acting on the underwater pipe? b) What is the minimum inner diameter to ensure the pipe does not yield?c) Sketch the variation of hoop and radial stress across the pipe wall, completed with stresslabelling. d) What is the resultant longitudinal stress of the pipe?A shallow foundation supported by a silty sand is shown in Figure 7.5. Given:Length: L = 2 mWidth: B = 1 mDepth of foundation: Df = 1 mThickness of foundation: t = 0.23 mLoad per unit area: qo = 190 kN/m2Ef = 15 x 106 kN/m2The silty sand has the following properties:H = 2 mμs = 0.4Eo = 9000 kN/m2k = 500 kN/m2/mUsing Eq. (7.17), estimate the elastic settlement of the foundation.Solve the preceding problem for a welded Tank with a = 62°,r = 19 irM = 0.65 in.,p = 240 psu E = 30 X 106 psi, and v = 0.30
- Solve the preceding problem for a column with e = 0.20 in,, L = 12 ft, I = 2L7in4, and E = 30 × 106psi.a. An overhead line has the following data: Span length= 160 m Conductor diameter= 0.95 cm Weight per unit length of the conductor= 0.65 kg/m Ultimate stress= 4,250 kg/cm2 Wind pressure= 40 kg/m2 Safety factor= 5 Calculate the sag? b. Derive the expression for the lowest point of the catenary curve if the supports are at different levels. Given that weight of conductor= 0.35 kg/m. Maximum allowable tension= 800 kg. Span length= 160 m and safety factor = 2. Find minimum point of catenary if supports are at 70 m and 60 m.need help calculating displecment / deflection using formula: W*L3 / 48*E*I W: 0,5,10,15,20,25 (N) L3: 0.4m E: Modulus of elasticity of Aluminum I: moment of Inertia: 1.51 x 10^-9 The cross section of material is aluminum tube 12.7mm x 9.5mm