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A school has various student associations. The principal wants to hold a meeting, and she wants each student association to send one representative to this meeting. No student can participate at the meeting as a representative of more than one organization. Find a sufficient and necessary condition on such a meeting being possible.
a dragster comes off the start line with an acceleration of 4 ms2. the acceleration increases uniformly from 4 ms2 to
saturated liquid water at 1 kgs and 200 kpa is mixed steadily with 4 kgs of water at 200 kpa and 200ordmc with the goal
It is necessary to select a metal alloy for an application that requires a yield strength of at least 310 MPa (45,000 psi) while main- taining a minimum ductility (%EL) of 27%. If the metal may be cold worked, decide which of the following are can..
a 200-m-high 4-m-diameter stack emits 1000 kgs of 100 degree c gases into 5 degree c air. the prevailing wind velocity
if the axial-flow pump is used to deliver 65000 galmin of 30oc water at 1200 rmin estimate a the impeller diameter b
Water in the pictured piston cylinder assembly has an initial quality of 10%. The piston cylinder is 20 cm in width and the piston is initially 40 cm high. Heat is added until the temperature of the steam reaches 500°C. While heat is being added the ..
Find an expression for the critical load Qcr. (In other words, at what load Qcr does the system collapses because of Euler buckling of the columns?
a motorist travelingalong a straight portion of a highway is decreasing the speed of his automobile at a constant rate
The "staircase" frame shown in the figure has a fixed support at the upper end and is free at the lower end. Every member of the frame has length Land flexural rigidity EI. A verticalload P acts at the free end. Determine the vertical deflection b..
The outer surface of an iron alloy is to be hardened by increasing its carbon content. The carbon is to be supplied from an external carbon-rich atmosphere, which is maintained at an elevated temperature. A diffusion heat treatment at 871°C for 12 mi..
a power plant produces a flue gas with a mass flow rate of 2 million pounds per hour. of that 150000 lbhr is water
The internal bending moment acting on the cross section of the channel strut has the magnitude and direction shown. First calculate zbar to locate the centroid C of the strut's cross sectional area.
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