the Young's modulus is expressed as,
E = FL/AdL
F = [AE]dL/L
mg = [AE][alpha*dT]
the mass is,
m = [AE][alpha*dT] /g
= 1.5x10-6*70x109*23x10-6*10 / 9.8
= 2.46 kg
An aluminum cable with cross-sectional area 1.50 times 10^-6 m^2 is suspended from the ceiling. A...
Need help The Young's modulus for a femur is 9 times 10^9 N/m^2, the cross sectional area is 8 cm^2 and initial length is 43 cm. What is the change in length if half of your weight is placed on the femur? (standing up) Find: Given: Concept(s): Solution:
a 200-kg load is hung on a wire of length 4.00 m, cross-sectional area 0.200 x 10^-4 m^2, and Young's modulus 8.00 x 10^10 N/m^2. what is it increase in length?
A conductor is 10,000 m long and has a cross sectional area of 0.5 cm^2 Calculate the resistance of the wire when it is heated to 300 degree C given that the wire is initially at room temperature of 20 degree C and its coefficient of resistance is rho_0 = 1.72 times 10^-8 Ohm m The temperature coefficient of resistance alpha = 3.9 times 10^- 3/C at room temperature. 11.9 12.6 8.5 9.0.
A 205-kg load is hung on a wire of length of 4.30 m, cross-sectional area 2.00 10-5 m2, and Young's modulus 8.00 1010 N/m2. What is its increase in length?
A 180-kg load is hung on a wire of length of 3.30 m, cross-sectional area 2.00x10^-5 m^2, and Young's modulus 8.00x10^10 N/m^2. What is its increase in length? mm
A copper wire of cross-sectional area 2.50 times 10^-6 m^2 and length 4.00 m has a current of 2.00 A uniformly distributed across that area. (a) What is the magnitude of the electric field along the wire? (b) How much electrical energy is transferred to thermal energy in 40.0 min?
A wire of unknown material with a cross-sectional area of 1 mm^2 and an unstretched length of 0.5 m is stretched through the application of known forces. From the plot of force as a function of Delta L in the figure, the Young's modulus of the material is: A. 4 times 10^10 N/m^2 B. 80 N/m^2 C. 40 N/m^2 D. 8 times 10^10 N/m^2 E. none of the above
A 310-kg chandelier is suspended from vertical steel cable. The cable is 6.9 m long. Assume a safety factor of 7.5. The elastic modulus for steel is 2.0×1011N/m2, and tensile strength for steel is 5.0×10^8N/m2. How much does the cable elongate? I got 4.56*10^-5 for the minimum cross sectional area required
An aluminum wire, of length l1 = 60.0cm, cross sectional area 1.00 × 10 cm , density waves(from(the(sun(just(outs3ide(the(atmospheres(of(Venus,(the(earth,(and(Mars.((valu3es(can(be( of 2.60g/cm , is connected to a steel wire of density 7.80g/cm and the same cross sectional found(in(the(appendix(of(your(textbook)( ( Problem(2:( area. The compound wire, loaded with a block of mass m = 10.0kg, is arranged as shown below so that the distance l2 from the joint to the supporting pulley is 86.6cm. Transverse waves are set up in the wire by an...
2) A light bulb filament is made of tungsten. It has a cross sectional area of 1.7 x 10-m and a length of 0.02 m. What tension force should you apply to the filament to stretch it by the diameter of 1 tungsten atom, which is 2.1 x 10-10 m? The Young's modulus for tungsten is 3.6 x 1011 N/m² (4 points)