A glass optical fiber in a communications system has a diameter of 9.0 μm.a. What maximum tension could this fiber support without breaking?b. Assume that the fiber stretches in a linear fashion until the instant it breaks. By how much will a 10-m-long fiber have stretched when it is at the breaking point?

A glass optical fiber in a communications system has a diameter of 9.0 μm.a. What maximum tension could this fiber support without breaking?b. Assume that the fiber stretches in a linear fashion until the instant it breaks. By how much will a 10-m-long fiber have stretched when it is at the breaking point?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter14: Static Equilibrium, Elasticity, And Fracture

Section: Chapter Questions

Problem 78PQ: A massless, horizontal beam of length L and a massless rope support a sign of mass m (Fig. P14.78)....

See similar textbooks

Similar questions

(a) When water freezes, its volume increases by 9.05% (that is, V/V0=9.05102 ). What force per unit area is water capable of exerting on a container when it freezes? (It is acceptable to use the bulk modulus of water in this problem.) (b) Is it surprising that such forces can fracture engine blocks, boulders, and the like?
Assume Youngs modulus for bone is 1.50 1010 N/m2. The bone breaks if stress greater than 1.50 108 N/m2 is imposed on it. (a) What is the maximum force that can be exerted on the femur bone in the leg if it has a minimum effective diameter of 2.50 cm? (b) If this much force is applied compressively, by how much does the 25.0-cm-long bone shorten?
A massless, horizontal beam of length L and a massless rope support a sign of mass m (Fig. P14.78). a. What is the tension in the rope? b. In terms of m, g, d, L, and , what are the components of the force exerted by the beam on the wall? FIGURE P14.78
A force stretches a wire by 1.0 mm.a. A second wire of the same material has the same cross section and twice the length. How far will it be stretched by the same force?b. A third wire of the same material has the same length and twice the diameter as the first. How far will it be stretched by the same force?
The Achilles tendon connects the muscles in your calf to the back of your foot. When you are sprinting, your Achilles tendon alternately stretches, as you bring your weight down onto your forward foot, and contracts to push you off the ground. A 70 kg runner has an Achilles tendon that is 15 cm long with a typical 1.1 x 10-4 m2 area.a. By how much will the runner’s Achilles tendon stretch if the maximum force on it is 8.0 times his weight, a typical value while running?b. What fraction of the tendon’s length does this correspond to?
A glass optical fiber in a communications system has a diameter of 9.0 μm. What maximum tension could this fiber support without breaking? Assume that the fiber stretches in a linear fashion until the instant it breaks. By how much will a 40 m long fiber have stretched when it is at the breaking point?
B. 1. Rod AB carries 500 kg cylinder at B, and it is supported by a hinge at A. Determine the minimum diameter of the bolt at A if the shear strength of the bolt is 40 MPa. Express the diameter in 60° whole number. A
The elastic limit of an alloy is 5.0×108 N/m2. What is the minimum radius ?min of a 9.0 m long wire made from the alloy if a single strand is designed to support a commercial sign that has a weight of 8000 N and hangs from a fixed point? To stay within safety codes, the wire cannot stretch more than 5.0 cm. ?min = ? m
A 40.0-m-long steel elevator cable has a cross-sectional area of 4.0 × 10^(-4 )m^2and is able to stretch 1.0 cm before breaking. If the elevator itself has a mass of1000. kg, how many 70.0-kg people can safely ride in the elevator?(Ysteel = 2.0 × 10^ 11 N/m^2) a. 14 b. 16 c. 12 d. 18 e. NOTA
A nylon string on a tennis racket is under a tension of 215 N. Part A If its diameter is 1.05 mm, by how much is it lengthened from its untensioned length of 30.0 cm ? Use ENylon = 5.00 × 10⁹ N/m². ΔΙ = 浴 ΑΣΦ ?
A.) A force stretches a wire by 4.0 mm. A second wire of the same material has the same cross section and twice the length. How far will it be stretched by the same force? B.)A force stretches a wire by 4.0 mm. A third wire of the same material has the same length and twice the diameter as the first. How far will it be stretched by the same force? c.) A force stretches a wire by 4.0 mm. A fourth wire of the same material has the same length and twice the cross section as the first. How far will it be stretched by the same force?
A rod, 120cm long and of diameter 3.0 cm is stretched by a force of 18 kN. What is its stress? O a. 25.47 N/mm² O b. 20.70 N/mm² O c. 2,470 N/mm² O d. 245 N/mm²