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1.You are asked to design a winch system for Santa's sleigh. Assume that Santa weighs 300 lbs, visits 10 houses an hour and requires a 20 foot lift at each house, what is the average power that the system will use if it is perfectly efficient? Express your answer in Watts.
2.The discharge from asugar beet plant causes the DO at the critical point to fall to 4.0 mg/L. The Meskhenet Stream has a negligible BOD and the initial deficit after the river and wastewater have mixed is zero. What DO will result if the concentration of the waste(Lw) is reduced by 50%? Assume that the flows remain the same and that the saturation value of DO is 10.83 mg/L in both cases.
what would be the horizontal and vertical component from this acting force see diagram
An isolated system contains an incompressible substance with heat capacity C = kT, where k is a constant. The system is initially divided in two parts, with 1/3 of the mass at T1 and 2/3 of the mass at T2.
Earth whose in situ weight is 110 lb per cf and compacted weight is 124 lb per cf is placed ina a fill at rate of 280 cy per hr, measured as compacted earth. The thickness of the compacted layers is 8 in.
Oil (specific gravity 0.752) flows through a 6" horizontal pipe under a pressure of 60 psi. Assuming no losses, what is the flow in cfs if the pressure at a 3" diameter reduction is 20 psi
The homogeneous gate shown consists of one quarter of a circular cylinder and is used to maintain a water depth of 4m. That is, when the water depth exceeds 4m, the gate opens slightly and lets the water flow under it.
The aluminum block has a rectangular cross section and is subjected to an axial compressive force of 8kip. If the 1.5-in side changed its length to 1.500132 in., Determine Poisson's ratio and the new length of the 2-in side.
question 1. what is the difference between labor cost and labor pro-ductivity? use a sketch to illustrate.question 2.
Air flows into the atmosphere from a nozzle and strikes a vertical plate as shown in Fig. P5.28. A horizontal force of 9 N is required to hold the plate in place. Determine the reading on the pressure gage. Assume the flow to be incompressible and fr..
vehicles arrive at a tollbooth according to the function lambdat 5.2 - 0.20t where lambdat is innbspvehicles per
a cu triaxial test with sigmac 20 psi is performed on a sand and a deviator stress of 80nbsppsi fails the specimen.
given bulk density as 1300kg/cubic meter and field capacity as 22% by weight and permanent wilting point as 10% by weight calculate available water capacity.
A stack (T=550*F and P=750mm Hg) was sampled using EPA Method 5. The total gas volume that flowed through the dry gas meter was 2.785 cubic meters (at T=60*F and P=800mm Hg). The mass of particles collected was 1.50g.
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