Two cables tied together at Care loaded as shown. Given: Q = 165 lb. C 3 30° C Q 3 P Determine the range of values of P for which both cables remain taut.
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- Question #1 2. Determine the tension in the cables (A, B, C) required to support the traffic lights shown in the diagram below. A 15° В 9.0 kg 14 kg Question #2 (cont'd) nal р. 81 (81 of 101) 4°C Partly sunny chAssume a 46 ft pole with a 24 in. circumference at the pole top and a 50 in. cırcumference at ground level. Also assume a wind velocity of 60 mph and an average span of 250 ft. The pole carries two crossarms, and each crossarm carries three conductors. The top crossarm is i ft below the pole top, and the lower crossarm is 2 ft below the top crossarm. Use hard-drawn copper conductors of 250 kcmil with 12 strands and 4/0 with 7 strands for the top and lower conductors, respectively. Assume that 6.5 ft of the pole is below the ground and find the total pressure of wind on pole and on conductors.In Buckling test: find Fc for the steel rod with dimensions (b-4.0 mm, h-2.0mm), its E =200 Mpa, and the length =75 cm, assume the Rod in fixed-fixed (clamped- clamped) case.
- 9-90. The starter for an electric motor is a full cylinder and has the cross-sectional areas shown. If copper wiring has a density of Peu = 8.90 Mg/m³ and the steel frame has a density of Pst = 7.80 Mg/m³, estimate the total mass of the starter. Neglect the size of the copper wire. Problem 9-90 Steel Copper 80 mm 50 mm 30 mm 100 mm 60 mmIn air, E sin e - cos(6 × 10’t – Br)a, V/m. Find B and H."In RHR, if your thumb points the direction of the velocity, your fingers curl in the direction of О в P O angle
- Speculate, in terms of the microscopic surface irregularities, about why μk < μs and what effect a lubricant has on the coefficient of friction.The terminal velocity of a copper ball of radius 2.0 mm falling througha tank of oil at 20 oC is 6.5 cm s-1. Compute the viscosity of the oil at 20 oC. Density of oil is 1.5 ×103 kg m-3. density of copper is 8.9 × 103 kg m-3.aterials/gp/3411297783 RCES GRAWE REPORT 01 otion with friction practice.docx 1 /2 > 157% e - I ab] 1 (sha 25 box acrss w at constet seeedf Hoe much fore do vau exert the bax MK-2 0.1 2. klween yo5 talle and nendis oth bhat is gretesr hori2 fore eveyed whie t rerins 2.Ms 1s D4 710 crate accelesation ofBy how much will a 220 cm length of copper ( Y for Cu = 117,000 MPa) wire, 2.2 mm in diameter, elongate when a 4.8 kg mass is hung from its end?A aluminum tank with a wall thickness of 5mm and radius of 112mm is 5m long was pressurized to 210kPa. Determine the circumferential stress in MPa.A 50 kg skier is going down a slope oriented 26 degrees above the horizontal. The area of each ski in contact with the snow is 0.14 m2. Determine the pressusre that each ski exerts on the snow.SEE MORE QUESTIONS