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The concept of variable banking for racetrack turns is shown in the figure. If the two radii of curvature are ρA = 300ft and ρB = 320ft for cars A and B, respectively, determine the maximum speed for each car. The coefficient of static friction is πs =0.90 for both cars.
Determine the gross water supply reservoir volume for the following information: City population: 200,000 Water consumption rate: 568 Lpcd Catchment area: 103 Km^2 Rainfall rate: 110cm/yr Annual soil evaporation: 50cm Minimum net reservoir volume:..
Assume you are observing traffic in a single lane of a highway at a specific location. you measure the average headway and average spacing of passing vehicles as 3 seconds and 150 ft, respectively. calculate the flow, average speed, and density of..
if the resultant of the 1000 lb vertical force and the tensile force T in the cable is to be in the direction of the boom OB, what must be the magnitude of T
A container with volume 0.2 m^3 holds oxygen and has gages showing readings of 70°C and 25 bars. Calculate the amount of oxygen (mass and moles) in the container if the atmospheric pressure is 1 bar.^3
For a beam made of 2 materials with different moduli of elasticity,show that the shear stress formula τ =VQ/lt remains validprovided that both Q and I
A laboratory consolidation test was performed on a clayey soil specimen, which was drained on both top and bottom. The time for 50% consolidation was 6.2 minutes, and the specimen's thickness at 50% consolidation was 0.740 in.
Determine: a) the height of the water, with respect to the base of each standpipe, and b) the effective stress at the depth of each standpipe, at the following times:
A fully penetrating well of 30 cm diameter in an unconfined aquifer of saturated thickness 50 m was found to give the following draw down - discharge relationship under equillibium condition.
The velocity of the 170 g hockey puck is m/s. Assume that 200 g is the equivalent mass of the stick concentrated in the blade which contacts the puck. The coefficient of restitution of between puck and blade is 0.6. Find the velocity of the blade of ..
Now, knowing ?hp or hl in the 1000’ parallel section, find the single-pipe diameter equivalent to two 12” dia ones. Assume high Rh, so Fig 9.11 applies.
Calculate the length of 10 equal-sized aeration basins for secondary treatment of a wastewater flow of 10 MGD with 20,000 lb of BOD per day for a conventional activated sludge process with a maximum loading of 40 lb BOD/ 1000 ft3*d.
determine the maximum wind load that the cavity wall , bothe wythes are fully grouted but unreinforced ,and type S mortar portland cement is used . prism strength is equal to 2666psi for the concrete block wythe and 5333 psi for the brick wythe.
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