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Fluid mechanics ch.9: A supertanker has length, breath, and draught (fully loaded) dimensions of 325m, 48m, and19m, respectively. In open seas the tanker normally operates at a speed of 115 kt (1 kt=0.515m/s). For these conditions, and assuming that flat-plate boundary-layer conditions are approximate, estimate the skin-fraction drag of such a ship steaming in 10 degrees celcius water. What power is required to overcome the skin friction drag? What is the boundary-layer thickness at 300m from the bow?
A two-bed carbon adsorption system is to be designed to handle 8000 acfm of air containing 700 ppm of hexane. Laboratory studies indicate that carbon can adsorb 8lb hexane per 100 lb carbon under the conditions at which the system will be operated.
given: Vf=Vi + a t and Sf=Si + Vi t + 1/2 a t Cedar points millennium force accelerates from 10 mph to 93 mph in 4.5 seconds. assuming acceleration is constant, find acceleration in ft/sec^2 and distance traveled in meters
An intersection approach volume is 1,500 veh/h and includes 12% left turns with a through-vehicle equivalent of 2.3 tvu's/left turn. What is the total equivalent through volume on the approach
Over the course of 3days, she added another 6lbs of water and at the end of 3days, there was 67lbs of water remaining. A nearby rain gage recorded 0.4 inches of precipitation over the period.
For a ternary system, three components are present; temperature is also a variable. What is the maximum number of phases that may be present for a ternary system, assuming that pressure is held constant
A 4 in. in diameter shaft moves through a well-oiled sleeve that is 12 in. long. The force required to move the shaft is 25 lbf, and the shaft velocity is 5 in./s.
the coefficient of the restitution for the collision is e = 0.3, and friction is negligible. if the time duration of the collision is 0.025 s, determine the average impact force which is exerted on the 3 kg body.
A simple four-leg intersection needs a 2-phase fixed-time signal. The critical flows in the N-S and E-w directions are 600 and 400 veh/hr, respectively, with a 0.95 peak-hour factor.
a simple curve has a central angle of 42degreess. a point y is located 24m from the vertex and has a perpendicular
A barge measures 10 ft (depth) by 35 ft by 120 ft and weighs 100 U.S. tons. The barge floats in fresh water (specific weight = 62.4 lb/ft3) and is evenly filled with 38,000 bushels of corn (60 lb/bushel).
A structure is designed with a factor of safety of 5.25 psi. If the allowable stress of the structure is 3000 psi. What stress on the structure will lead to its failure
Calculate the density of magnesium, an HCP metal, fromatomic data, and compare the result wit the measured value,1.74g/cm3.Account for differences.
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