8. Two solid cylinder freeway support columns are made with identical materials. Column 2 is 2.00 times taller than column 1. What is the value of the ratio (diameter-2)/(diameter-1) if column 2 has the same hooke-constant for compressional loading as column 1? circle one: 1.01 1.11 1.22 1.33 1.41 1.50 1.61 1.71 1.91 2.00 2.50 3.00

8. Two solid cylinder freeway support columns are made with identical materials. Column 2 is 2.00 times taller than column 1. What is the value of the ratio (diameter-2)/(diameter-1) if column 2 has the same hooke-constant for compressional loading as column 1? circle one: 1.01 1.11 1.22 1.33 1.41 1.50 1.61 1.71 1.91 2.00 2.50 3.00

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter11: Fluid Statics

Section: Chapter Questions

Problem 27PE: A certain hydraulic system is designed to exert a force 100 times as large as the one put into it....

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A certain hydraulic system is designed to exert a force 100 times as large as the one put into it. (a) What must be the ratio of the area of the slave cylinder to the area of the master cylinder? (b) What must be the ratio of their diameters? (c) By what factor is the distance through which the output force moves reduced relative to the distance through which the input force moves? Assume no losses to friction.
The lintel of prestressed reinforced concrete in Figure P12.27 is 1.50 m long. The concrete encloses one steel reinforcing rod with cross-sectional area 1.50 cm2. The rod joins two strong end plates. The cross-sectional area of the concrete perpendicular to the rod is 50.0 cm2. Youngs modulus for the concrete is 30.0 109 N/m2. After the concrete cures and the original tension T1 in the rod is released, the concrete is to be under compressive stress 8.00 106 N/m2. (a) By what distance will the rod compress the concrete when the original tension in the rod is released? (b) What is the new tension T2 in the rod? (c) The rod will then be how much longer than its unstressed length? (d) When the concrete was poured, the rod should have been stretched by what extension distance from its unstressed length? (e) Find the required original tension T1 in the rod. Figure P12.27
A copper rod with length 1.4 m and cross-sectional area 2.0 cm2 is fastened to a steel rod of length L and cross-sectional area 1.0 cm2. The compound structure is pulled on each side by two forces of equal magnitude 6.00 104 N (Fig. P14.57). Find the length L of the steel rod if the elongations (L) of the two rods are equal. Use the values Ysteel = 2.0 1011 Pa and YCu = 1.1 1011 Pa. FIGURE P14.57
12:10 4G Not Secure - yslphysics.weebly.com the rod. odulus for metal = 1.0 x 10!l N m²² ) 30 of 32 Answer: 3.2×10-4 J EXERCISE 2 A hollow cylinder has length 50.0 cm, internal diameter 5.0 cm and external diameter 6.0 cm. A force of magnitude 1.0 kN acts at each end of cylinder so that the cylinder is being compressed. Determine the compression of cylinder. ( Young's modulus for the material of the Cylinder = 7.0x101º Nm-² ) Answer: 8.3×10-6 m EXERCISE 3 A wire of length 0.50 m is fixed horizontally between two supports separated by 0.50 m. When a mass of 8.0 kg hangs from the middle of the wire, the mid-point sags by 1.00 cm. The diameter of the wire is 2.8 mm. Calculate the Young's modulus of the wire. (Given g = 9.81 m s-2) Answer: 1.99 × 10* Pu
5th digit is 0.Thank you.
PROBLEM 2. The light rigid bar ABCD shown in Fig. P-252 is pinned at B and connected to two vertical rods. Assuming that the bar was initially horizontal and the rods stress-free, determine the stress in each rod after the load after the load P = 41. 29 KN is applied. Hint: convert the distance of each member into mm, area of steel and aluminum into mm^2, & E into MPa.. Steel L-3 ft A- 0.5 in E- 29 x 10° psi 4 ft Aluminum L-4ft A- 0.75 in E - 10 x 10 psi + 2 ft Figure P-252
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What is the axial stress in the bronze rod (in MPa)? 2m 3m 60 KN Usmm I5 mm banze rod Next
xe 12mm dia s 18mm dia. P=12 kN 2 m. 12mm dial 2. Three steel cable jointly support a load of 12kN. The diameter of the middle bar is 18mm and the diameter of each outer cable is 12mm, The tension in the cable are adjusted so that each cable carrries one third of the total load(4kN). Later it was increased by 9kN to a total of 21 kN. a. What percent of the total load is now carried by the middle cable? b. Determine the stress of the middle cable c. Determine the stress of outer cable..
QUESTION 17 (a) Calculate reactions at A and B in beam shown in Figure Q17 (b) Determine the shear-force and bending-moment distributions in the beam (c) Draw the shear and moment diagrams for the loaded beam. 1000 N 2100 N.m B 3m 3m 3m Figure Q17 (d) A 6m length of framework experiences a compressive load of 125 kN and is made of a structural steel solid bar which has a diameter of 35mm. Youngs Modulus E=200 GN/m?. Calculate the compressive stress experienced by this section and change in length experienced under these loading conditions
I Find the maximum at A. Take V- 5000N ↓ Imm 140 mm A shear stress & the shear stress 20mm 100mm I 20 mm