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A rectangular portal frame of uniform section is hinged at the base and subjected to the loads shown in Figure S9.2 . The shape factor of the section is 1.15, the yield stress of the steel is 16 kips/in 2, and the required load factor is 1.75. Neglecting the effects of axial loads and instability, determine the required elastic section modulus of the members.
She plans to deposite 5% of her yearly salery, into retirment fund that earns 7% intrest compounded daily. what amount will accumulate at time of her retirement?
What is the maximum weight that can be suspended on a 16 Kg poll, 3/5 from the end. The maximum tension of the 30 degree guy-wire is 1500 N. Find the horizontal and vertical forces exerted on the poll by the hinge.
while groundwater andinfiltration losses over the period were estimated to be 0.6 inches. Determine the combined amounts of water evaporated and transpired from the region during the year of record.
A 45-percent efficient, coal-fired power plant generates output power of 1000 MW (106 kW) and emits SO2 at the legally allowable rate of 0.6 lb SO2 per million BTU of heat into the plant. The stack has an effective height of 250 m.
the present worth of an increasing geometric gradient is $23,632. The interest rate is 10% per year, and the rate of change is 4% per year. If the cash flow amount in year 1 is $3000
a concrete box girder bridge has the rectangular x-section. the box is prismatic and considered thin-walled. it span is
Photographic cameras on spy satellites supposedly can read the license plate of a car on the ground.About how far apart would you estimate the digits on a license plate are? If the satellite orbits at a height of 160 km, about what angular resolution..
A coal-burning steam power plant produces a net power of 300 MW with an overall thermal efficiency of 32 percent. The actual gravimetric air-fuel ratio in the furnace is calculated to be 12 kg air/kg fuel.
Prepare a set of profile leveling notes for the data listed and show the page check. All the data is given feet. The elevation of BM A is 659.08 and the elevation of BM B is 648.47
A 4-m-long steel rod must not stretch more than 3 mm and the normal stress must not exceed 150 MPa when the rod is subjected to a 10- KN axial load.
World population 10,000 years ago has been estimated at about 5 million. what exponential rate of growth would have resulaed in the population in 1850 , which is estimated at 1 billion ? had that rate continued , would the population have been in the..
Determine the required pumping rate. the aquifer has T= 1600 m 2 /day and the wells each have radius of influence of 600m.
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