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A rectangular reinforced concrete beam with dimensions b = 14in, d = 25in, and h = 28in is reinforced with three No. 10 bars. Material strengths are fy = 60,000 psi and fc prime = 5,0000 psi.
a.) Find the moment that will produce the first cracking at the bottom surface of the beam, basing your calculation on I gross, the moment of inertia of the gross concrete section.
b.) Repeat the calculation, using Iut, the moment of inertia of the uncracked transformed section.
c.) Determine the maximum moment that can be carried without stressing the concrete beyond 0.45 fc prime or the steel beyond 0.60fy.
d.) Find the nominal flexural strength from part (d.) to the service capacity from part (c.).
e.) Compute the ratio of the flexural strength from part (d) to the service capacity from part (c).
A 100ft steel tape measure correctly when supported throughout its length under a tension of 1- lb and at a temperature of 72F.It is used on the field at a tension of 18 lb and supported at the two ends only.
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An orifice meter was calibrated for dry air at T=90 F and P=1.3 atm. The calibration data are as follow: dp(inches of water): 0,0.5,1.0,2.0,3.0,4.0,5.0 Q(ft^3/minute): 0,2.0,3.0,4.2,5.0,5.5,5.8
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If the slotted arm OA rotates counterclockwise with a constant angular velocity of thetadot= 2.0 , determine the magnitude of the velocity of peg P when theta= 58. Determine the magnitude of the acceleration of peg P when theta= 58.
At the morning break, an industrial engineer quickly measures the worker's heart rate and finds a peak value of 110 beats/min one minute after stopping work and a value of 95 beats/min three minutes after stopping work.
The sand particles range in diameter from 0.04 to 2.0 mm with a specific gravity of 2.65. The wastewater discharge rate is 1400 m3 /d at 20°C. Design a settling tank to remove all the metal and sand particles.
A home builder must construct a sewage treatment plant and deposit sufficient money in a perpetual trust fund to pay the $5000 per year operating cost and to replace the treatment plant every 40 years.
In what direction did the cue ball move after the collision? What percentage of its kinetic energy did the cue ball impart to the eight ball?
Ten tons of a mixture of paper and other compostable materials has a moisture content of 7%. How many tons of water must be added to the solids to achieve a mixture with 50% moisture for composting
A stack (T=550*F and P=750mm Hg) was sampled using EPA Method 5. The total gas volume that flowed through the dry gas meter was 2.785 cubic meters (at T=60*F and P=800mm Hg). The mass of particles collected was 1.50g.
The plant currently has one CMFR for removal of chromium. How many more identical reactors does the sony music company require to meet the regulatory requirements for chromium discharge of 0.01 mg/L into the Pitman Sewer?
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