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Its desired to produce 5 cubic yards of cencrete with a ratio of 1:1.8:3.5 of cement, snd, and gravel what are the required amounts of components if 5.5 gallons of water per sack of cement is to be used? Assume the free miosture contents of the sand and gravel are 3% and 0.75% respectivley. The specific gravities of cement, sand, and gravel are 3.15,2.65,and 2.65 respectivley give the answer for cement in sacks, the sand, and gravel on pounds and the water in gallons.
A solid rectangular simply supported timber beam 6 in wide, 20 in deep, and 10 ft long carries a concentrated load of 16,000 lb at midspan. Use nominal dimensions.
compute the max possible moment at the centerline of the beam and the absolute moment in the beam.
A Kennedy half dollar has a mass of 1.150 X 10-2 Kg. The coins is a mixture of silver and cooper, and in water weights 0.1011 N. What is the mass of the silver?
What is the Hydraulic Radius of a rectangular channel that has a bottom width of 5 feet and a flow depth is 3.5 feet. Assume the bed slope is 1.5%, and the Manning's roughness coefficient is 0.013.
Compare the three-decimal-place values of the two approximations at x=(1/2) with the value y(1/2) of the actual solution . then do the same for PART B: y'=-2xy , y(0)=2 ; y(x)=2e^(-x^2)
Calculate the critical volume then estimate the green time interval for each phase of the intersection using the data provided below. Assume that the intersection will operate as a simple two phase cycle with a 90 second cycle length.
The compound beam assembly shown is made up of 4 members connected by pins and is supported by hinges/pins at A and E. L= 2.6m (L is the lengthD to E) , and w= 60 (w is the load-lines) .
A car is traveling toward a 20 degree slope at 60 mph. The wheels have a radius of 12 in, and the car's wheelbase is 100 in. What is the angular rotation rate of the car immediately after the front wheel contacts the slope
A 16-ft [4.88 m] span beam is fixed at one end and simply supported at the other end. A single concentrated load of 9600 lb [42.7 kN] is placed at the center of the span.
A thin flat plate is 12 m long and 8 m wide. The air density is 1.23 kg/m3. a) What is the maximum velocity for the boundary layer to remain laminar over the entire plate (the transition occurs at the end of the plate)
A cast brass rod 60mm in diameter and 150mm long is compressed axially by a uniformly distributed force of 200kN. Determine the increase in diameter caused by the applied force, E=85GPa; poisson's rato=.30
Assuming constant acceleration, determine how long the train blocked the crossing. Dis- regard the width of the crossing.
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