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The boom supports two vertical loads. Neglect the size of the collars D and B and the thickness of the boom, and compute the horizontal and vertical components of force at the pin A and the force in the cable CB. Set F1= 800 N and F2= 350 N.
The pins on the frame at B and C each have a diameter of 0.25 in. If these pins are subjected to double shear, determine the average shear stress in each pin.
For a triangular channel of z=2 side slopes tha tcarries a discharge of 100 cfs at a depth of 5 ft, determine the channel slope S under the assumption that normal flow exists and that n equals 0.022.
Using the USLE, estimate the annual erosion from a 100 ha. forested watershed assuming the following: R =112 tonnes/ha/year. The forest is in fair condition with 40% cover; Average slope is 3%; The soils are clay loam in hydrologic group C.
Specification for observing angles of an 8-sided polygon limit the total angular misclosure to E=6". How accurately must each angle be observed?
The Pomdeterra wastewater treatment plant produces thickened sludge that has a suspended solids concentration of 3.8%. They are investigating a filter press that will yield a solids concentration of 24%.
Assume that a gallon of gas contains 114,000 BTUs of energy and that a brilliant engineer has created an 80 percent efficient solar cell. Find the area (in square smoots and in square feet) that an array of these solar cells
The 4-mm diameter cable BC is made of a steel with E= 200 GPa. Knowing that the maximum stress in the cable must not exceed 190 MPa and that the elongation of the cable must not exceed 6mm, find the maximum load P that can be applied as shown.
A wire has a resistance of 1.2×10-2 . What will the wire's resistance be if it is stretched to twice its original length without changing the volume of the wire
An uncovered swimming pool loses 1 inch of water off its 1,000ft^2 surface each week due to evaporation. the heat of vaporization for water at the pool temperature is 1,050 Btu/lb
A vane, 10 cm long and 8 cm in diameter, was pressed into soft clay at the bottom of a bore hole. Torque was applied and gradually increased 45 N-m when failure took place. Subsequently the vane rotated rapidly so as to completely remould the soil..
Water in a rectangular channel flows into a gradual contraction section. If the flowrate is Q = 25 ft^3/s and the upstream depth is 2 ft, determine the downstream depth. Sketch the specific energy diagram and indicate its important characteristics. N..
Suppose X is a continuous random variable with probability density function, f(x)=4x^3 for 0
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