1.A rectangular beam of 12 in. width and 18 in. depth is pre-stressed by a force of 20 kip applied through a tendon of wires of 2 in. diameter located 3 in. from the bottom. The beam carries a load of 2 k/ft over a span of 20 ft. The pre-stress losses are 25%. Compute the stresses in concrete at the (1) transfer stage, and (2) service load stage. The density of concrete is 145 lbs/ft3. 2. The compressive strength of concrete is 5000 psi. Accordingly, the allowable stresses are the following: ftt = the allowable tensile stress in concrete at initial transfer of pre-stress = -190 psi fct = the allowable compression stress in concrete at initial transfer of pre-stress = 2400 psi fcs = the allowable….
Category Archives: Finance
1. For the braced column section and the loading shown in Figure P10.20, determine the limit states for which the column should be designed. Use A992 steel 2. Design a beam of A36 steel for the loads in Figure P11.1. Determine the maximum unbraced length of beam to satisfy the requirement of adequate lateral support. 3. Design a simply supported 20 ft span beam of A992 steel having the following concentrated loads at the midspan. Service dead load = 10 k Service live load = 25 k Determine the maximum unbraced length of beam to satisfy the requirement of adequate lateral support.
1.Design a beam of A992 steel for the loading shown in Figure P11.2. The compression flange bracing is provided at each concentrated load. The selected section should be such that the full lateral support condition is satisfied. Determine the maximum unbraced length of beam to satisfy the requirement of adequate lateral support. 2. Design a cantilever beam of A992 steel for the loading shown in Figure P11.3. The compression flange bracing is provided at each concentrated load. The selected section should be such that the full lateral support condition is satisfied. Determine the maximum unbraced length of beam to satisfy the requirement of adequate lateral support.
1. How has DELTA done vs. HFRI_FW and S&P index? Compute the mean return,
volatility, Sharpe ratio, and correlations of DELTA with the indices, for the whole period
as well as two subperiods (2008-2009 and 2010-2011). What is the simple cumulative
return for DELTA and HFRI_FW and S&P index in the whole period from 2008 Oct to
2011 May? If you start with 1$ in each of these in beginning of Oct 2008, how much
money you will end up with in 2011 May?
2. Using a four-factor model that is expanded from Fama-French three-factor model by
adding a Momentum factor, please evaluate the performance of HFRI equity hedge total
return index and the DELTA strategy. Interpret your regression results. Do they
outperform? What are their exposures….
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Describe the Form of some ordinary objects around you, in accordance with Plato’s theory. How do you know whether an object is defined by one Form or another? What can you say about the Form of an ordinary object, in the fashion of Plato’s discussion of the Form of triangle? If an object changes, does it change Forms as well? Can an object have conflicting Forms? Can we understand our recognition of objects without some conception of Forms to explain how it is that we recognize them?
In what sense is it fair and in what sense is it not fair to treat everyone equally—for example, in the distribution of salaries and payment for services? Should someone who works hard make more than someone who does not? Why do we believe that hard work should be rewarded? Should a twenty-year employee make no more than a novice? Why should “time on the job” make a difference? Should the owner of a company keep no more in profits than she pays her employees? Why should ownership make a difference? Should a person who desperately needs a good deal of money for a lifesaving heart operation be given more than another person who is in perfect health and has no particular need for the money? Do we….
Discussion: Sampling Methods Sampling refers to the collection of data. The five primary sampling methods are discussed in section 1.2 of the textbook for this module and include:
Simple random sampling Stratified sampling Cluster sampling Systematic sampling Convenience sampling
Please explain ONE of these types of sampling methods and give an example of how it could be used. For example, you could explain simple random sampling and use an example of how it could be conducted by using a random number table to select employees to interview in your workplace about employee morale. Please remember to be specific and to put the discussion into your own words. Do not just copy and paste technical information from the textbook or another source. Really strive to understand how the sampling….
Individual Risk Management Plan (RMP) Objective The goal of the Individual Risk Management Plan (RMP) is to select a project and then to create and detail a risk management plan that would support that project. Guidelines The Individual Risk Management Plan is due by the end of Week 4 and should be 10 to 15 pages long without counting cover page, reference page, or appendix. The Individual Risk Management Plan will be graded on quality of research topic, quality of paper information, use of citations, grammar, and sentence structure. Papers must be in 12-point font, double-spaced, and must include a cover page, table of contents, introduction, body of the report, summary or conclusion, and works cited. Even though this is not a scientific-type writing assignment, and is mostly creative….
Sam Tucker is a sales engineer at Buford Chemical Engineering Company. Sam owns two vehicles, and one of them is entirely dedicated to business use. His business car is a used small pickup truck, which he purchased with $11,000 of personal savings. On the basis of his own records and with data compiled by the U.S. Department of Transportation, Sam has estimated the costs of owning and operating his business vehicle for the first three years as follows:
First YearSecond Year Depreciation$2,879$1,776$1,545Scheduled maintenance100153220Insurance635635635Registration and taxes785750Total ownership cost$3,692$2,621$2,450Nonscheduled repairs3585200Replacement tires353027Accessories151312Gasoline and taxes688650522Oil80100100Parking and tolls135125110 Total operating costs$988$1,003$971 Total of all costs$4,680$3,624$3,421Expected miles driven14,50013,00011,500
If his interest rate is 6%, what should be Sam’s reimbursement rate per mile so that he can break even?