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Given a tree T of nodes such that each node contains a number. A set of nodes S is an independent set of T iff no node of S is a parent of another node in S. Describe a dynamic programming algorithm to find an independent set of T such that the sum of numbers of nodes in the set is the largest among all possible independent sets of T.
you have been selected to assist the structural engineer for a bridge replacement project. your task is to design the
Water at 20 degrees flows at a velocity of (V =) 2 m/s in a (D =) 250-mm diameter horizontal ductile iron pipe. Estimate the friction factor f in the pipe, and state whether the pipe is hydraulically smooth or rough.
Water flows through a 250-mm diameter steel (C=120) pipe at a a velocity, V = 1.5 m/s. Using the Hazen-Williams equation, what is the head loss due to friction per 1000 m of pipe
Assume that there were 1,100,000 vehicles making a 28.5-mi round trip per day, the average vehicle emission rate for VOCs is 1.3 g/VM , and the molecular weight of the VOC emissions from the mobile sources can still be represented by that of metha..
Suppose 500 people are approched outside of a grocery store to answer some survey questions. If each person decides independently whether or not to participate, and each has a probability of 0.1 of participating
Reciprocal leveling gives the following readings in feet from a setup near A: on A, 2.071; on B, 8.254, 8.259 and 8.257. At the setup near B: on B, 9.112; on A, 2.926, 2.930 and 2.927. The elevation of B is 1099.600. Compute the disclosure and ele..
Calculate the peak bending moment for the 4x10 roof beam. Then draw a clear dimensioned FBD for the two exterior bearing walls above the floor joists, no moment calcs here.
Air at 14.7 psia, 55*F, 60 percent relative humidity is first heated to 72*F in a heating section and then humidified by introducing water vapor. The air leaves the humidifying section at 75*F and 65 percent relative humidity.
Determine how many years from now the consumption will reach its design capacity with current usage rates if the community has a declining growth rate.
Give one possible characteristic or property of sanstone and of the quartzite that made you decide not to select it for your concrete project?
it carries a uniform service load of 2450 lb/ft in addition to its own weight. material strengths are f'c=4000psi and fy=60000psi .assume a weight od 150 pcf for reinforced concrete.
It rains an average rate of 0.4 in/hr in a 600 acre watershed for 3 days. Determine: a) average rainfall rate in cfs b) rainfall volume for the 3 days in acre-ft c) rainfall volume in inches.
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