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You must determine the ground clearance of an overhead electrical cable. Surveyor B is positioned directly under the cable (surveyor B's position can be checked by his sighting past the string of a plumb bob, held in his outstretched hand, to the cable); surveyor A sets her clinometer to 45º and then backs away from surveyor B until the overhead electrical cable is on the cross hair of the leveled clinometer. At this point, surveyors A and B determine the distance between them to be 43.6 ft. Surveyor A then sets the clinometer to 0º and sights surveyor B; this horizontal line of sight cuts surveyor B at a distance of 3.8 ft above the ground. Determine the ground clearance of the electrical cable.
If the brakes are applied uniformly for 5 sec to bring the rig to a stop from a speed of 20 mph while moving down a 10 percent grade, determine the force P in the coupling between the trailer and the truck. The truck weighs 20,000 lbf and the trai..
The regulatory agency has told the company to maintain a salt level pf no greater then 250 mg/L downstream of the discharge. what should the removal efficiency. (percentage of the salt removed) of a process designed to remove salt from the waste w..
The effluent contains 20 mg/L of solids and 20 mg/L of BOD the biological treatment process produced .32 kg of bacterial solids per kg of BOD removed
Ethane (C2H6) at 20°C and 200 kPa and methane (CH4) at 45°C and 200 kPa enter an adiabatic mixing chamber.
From the distances and deflections computed in Problem 11.8, compute the chords (six) required for layout directly on offsets 50 ft right and 50 ft left of the c L.
Inital Cost=$40,000, Estimated Salvage Value (@ year 5)=18,000, Actual Salvage Value (@ yr.5)=20,000, Depreciation: Straight-Line (No half -year convention), Life=5yrs, Annual Benefit=10,000, and tax rate=34%.
Design a cord (design the constants k and ) so the cord stretches 2.5 times the unstretched length, and the acceleration of the jumper doesn't exceed 3g, and the cord has zero stiffness at the bottom of a 400ft drop.
A Newtonian fluid is in the clearance between a shaft and a concentric sleeve. When a force of 600 N is applied to the sleeve parallel to the shaft, the sleeve attains a speed of 1 m/s. If a 1500 N force is applied, what speed will the sleeve atta..
A reaction of great significant for undergraduate students is the fermentation of sugar with yeast. This is a zero order (in sugar) reaction, where the yeast is a catalyst (it does not enter into the reaction itself)
The soil in a dry granular deposit has an angle of internal friction equal to 35 degrees. At a point in the soil mass where the lateral pressure is 1,000 psf, what maximum vertical pressure can be imposed
A batch system is assumed to be first order. The initial concentration is 225 mg/L. If the reaction rate constant is 0.65 hr^-1, how long will it take for the concentration to be one-quarter the starting concentration
Determine a composite SCS runoff curve number for a 600-acre basin that is totally within soil group C. The land use is 40 percent contoured row crops in poor hydrologic condition and 60 percent native parture in fair hydrologic condition.
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