A steel wire of length LAB is stretched between rigid supports. The initial prestress in the wires is 45 MPa (tension) when the temperature is 25 degrees celsius. Assume alpha (a) = 15 * 10-6/degreesC and E= 200 GPa.
a) What is the stress in the wire when the temperature drops to 0 degrees celcius? Is it in tension or compression?
b) At what temperature T will the stress in the wire become zero?
c) What happens when the temperature continues to increase past T calculated in b? What is the elongation in the wire at 50 degrees celcius?
Which of the following statements about responsibility accounting is true A. Managers should be held responsible for all price variances that occur within their departme...Jan 11 2020
A modified Mendelian ratio is represented by (A) 9:3:3:1 (B) 1:3:1 (C) 3:1 (D) 9:7 (E) 1:1Mar 14 2018
1. Suppose the supply and demand for milk is described by the following equations: Qp 600-100P and Qs -150+150 P, where P is price in dollars. Qp is quantity demanded ...Apr 06 2020
Who really controls gasoline prices?If gasoline prices go up, whose fault is it?If gasoline prices go down, who benefits the most?Jun 11 2018
On January 1, 2006, the Sepe Delivery Company purchased a delivery van for $33,000. At the end of its five-year service life, it is estimated that the van will be worth $...May 22 2018
A diesel-powered tractor with a cost of $90,000 and estimated residual value of $15,000 is expected to have a useful operating life of 30,000 hours. During April, the tra...May 22 2020
Modern Justice Department guidelines evaluate mergers according to how they would change the industry'sa.Herfindahl index.b.four-firm concentration ratio.c.eight-firm...Dec 09 2019
BMW Aligns Executive Bonuses with Workers’ BonusesBMW became the first major blue-chip German company to link the bonuses of its top managers to those of its assembly lin...May 05 2020
WACC and NPV. Photochronograph Corporation (PC) manufactures time series photographic equipment. It is currently at its target debt–equity ratio of .45. It’s considering ...May 25 2020
I added aquestionas imagesQ1.: What are the quartiles for the following set of numbers?Q2 What are the quartiles for the following set of numbers?Q3. What is the interqua...Apr 06 2020
Welcome to MyCourseHelp Services, World's leading Academic solutions provider with Millions of Happy Students.