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A simple "box-like" canoe has outer dimensions of 15.0 ft in length, 2.0 ft in width, and 1.0 ft in depth. The canoe shell is made of concrete with a specific weight of 58.0 lbs/ft^3 and contains 15.0 lbs of steel reinforcement with negligible volume. The volume of concrete in the canoe shell can be estimated by the following equation: V=tx64 ft^2, where t is the hull thickness in feet.
a four inch freeboard is desired. for a hull thickness of .5 in what is the maximum weight of the paddlers and other gear?
a section of highway has a speed flow relationship of the form q= au^2 + bu it is known that at capacity ( which is 3100 veh/h) the space-menu speed of traffic is 28 mi/h. determine the speed when the flow is 1500 veh/h and the free flow speed.
a gate having cross section shown in fig closes an opening 5 ft and 4 ft high in a water reservoir. The gate weighs 400lb and its center of gravity is 1 ft to the left of AC and 2 ft above BC. Determine the horizontal reaction that is developed on..
Assuming steam to be an ideal gas, calculate its specific volume and density at a pressure of 90 lb/in^2 and a temperature of 650°F.
Determine the force at the circular endcap and its location relative to the bottom of the pipe. If there is a hinge at the bottom, what external force would need to be applied to the top to prevent rotation
An industry is illegally discharging benzene into a river. The concentration in the river at the point of discharge is 0.2 mg/L. A drinking water treatment plant (DWTP) is located 1.5 km downstream. The water velocity in the river is 0.35 km/day.
A surveyor measures an angle with two instruments; call them A and B. Both instruments produced unbiased measurements, but the standard deviation of measurements made with instrument A is twice that of B.
The outside and inside diameters of 75 mm and 63 mm, respectively. A strain gauge is placed on the outside of the hollow segment of the tube to measure normal strains in the longitudinal direction. assume E=73 GPa and Poissons ration v=0.33. strai..
The boat is travelling along a circular path with a speed v=(0.0625t). Determine the magnitude of its acceleration when t=10s
Develop an estimate of the volumetric flow rate of air that will be required for aeration of the mixed liquor in an activated sludge system.For this calculation, assume that the (ultimate) CBOD is 200 mg/L and (ultimate) NBOD is 50 mg/L.
At that time, there is no more fuel in the rocket engine and the rocket continues upwards in free fall (g=0 ft/sec/sec). (a) How high will the rocket reach before it begins to fall back to the campus
a meter long steel plate with a rectangular cross section(10mm x 50mm) is resting on a frictionless surface under the sun. the plate temperature is measures to be at 40C.
What is the maximum safe speed around the curve? If the speed limit on the roadway is 60mph, what action should be taken by the engineer?
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