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a block of mass m is on an inclined plane that makes angle from the horizontal plane. the coefficient of friction between the plane and the block is µ. find the point where the normal reaction N acts on the block. the frictional force on the block is indicated by f.
Find the coeficient of friction between the trusses and the inclined. Three trusses are 1m long 1kg each.
The station of the PC is 20+00. Determine the station of the point where th superelevation runoff begins, the station whe the tangent runoff begins and the station where the curve is fully superelevated if the design superelevation is 6%
A flow of 4.8 m3/s is to be developed from a 500 km2 watershed. The reservoir is estimated to cover 1,700 ha. The annual rainfall is 97 cm, the annual runoff is 30 cm, and the annual evaporation is 120 cm
If the dry-rodded unit weight of an aggregate is 105 lb/ft3 (1680 kg/m3) and its specific gravity is 2.65, determine the void content.
A bridge has cylindrical piers 1 m in diameter and spaced 15 m apart. Downstream of the bridge where the flow disturbance from the piers is no longer present, the flow depth is 2.9 m and the mean velocity is 2.5 m/s.
Compute the maximum acceptable tensile service load T that may act on a single angle L6x4x3/4 that is welded along only one leg to a gusset plate; thus, there are no holes. The service load is three times the dead load. Solve for a0 A36 steel.
Discuss how the NEC3 form of contract provides stimulus to good management and compare and contrast this where possible with other forms of contract.
Suppose that 0.03% of plastic containers manufactured by a certain process have small holes that render them unfit for use. Let X represent the number of containers in a random sample on 10000 that have this defect.
Cable AC is 70 ft long, and the tension i nthe cable is 5250 lb. Determine the x, y, and z components of the force exerted by the cavle on the anchor C. Also, find the angles theta-x, theta-y, and theta-z defining the direction of the force.
A field party is capable of making taping observations with a standard deviation of +,-0.003m per 30m taped length. What standard deviation would be expected in a distance of 120m taped by this party
You plan to use a tank of total volume V= 10 m3 to remove a contaminant at concentration Cin = 1 g/m3 from a waste stream with a flow rate of Q = 1 m3/h. The reaction is first order with a rate constant k1 = 0.5 h-1.
At the end of 15 years, the first motor will have a salvage value of $50 and the second motor will have a salvage value of $100. consider the MARR to be 8%. (note : 1HP=0.7457 kw). Determine which motor should be installed based on the PW criterio..
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