10. What is the maximum elongation of a helical spring which is made of phosphor bronze composed of 20 turns of 20 mm diameter wire with a mean radius of 80 mm when the spring is stressed to 140 MPa, for which G = 42 GPa? a. 226 mm b. 242 mm c. 235 mm d. 250 mm

10. What is the maximum elongation of a helical spring which is made of phosphor bronze composed of 20 turns of 20 mm diameter wire with a mean radius of 80 mm when the spring is stressed to 140 MPa, for which G = 42 GPa? a. 226 mm b. 242 mm c. 235 mm d. 250 mm

Residential Construction Academy: House Wiring (MindTap Course List)

4th Edition

ISBN:9781285852225

Author:Gregory W Fletcher

Publisher:Gregory W Fletcher

Chapter1: Residential Workplace Safety

Section: Chapter Questions

Problem 12RQ

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Measuring is the comparison of a particular physical quantity with its reference value. A unit is a fixed physical quantity. The length is a physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with. 

Question

10. What is the maximum elongation of a helical spring which is made of phosphor
bronze composed of 20 turns of 20 mm diameter wire with a mean radius of 80 mm
when the spring is stressed to 140 MPa, for which G = 42 GPa?
a. 226 mm
b. 242 mm
c. 235 mm
d. 250 mm

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