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Find the second-law efficiency for the open FWH in Problem 9.40.
Problem 9.40
An open FWH receives steam at 1 MPa, 200?C from the turbine and 1 MPa, 100?C water from the feed water line. Find the required fraction of the extraction flow in the turbine.
The motor in the unit runs at 300 rpm and produces an unbalanced force of 60 lb at this speed. Neglect weight of the beams and assume 1% viscous deflection in the system; for steel E=30,000 ksi.
how many strands will be required to make the pre-stressing cable.
While the swing bridge is closing with a constant rotation of 0.5 rad/s, a man runs along the roadway such that when d = 10 ft he is running outward from the center at 5ft/s with an acceleration of 2 ft/s^2, both measured relative to the roadway.
what is the maximum load that may be applied to a specimen with a cross sectional area of 130 mm^2 without plastic deformation.
The wheel of radius r rolls without slipping and has an angular velocity w. Write an expression for the velocity of point A in terms of theta and show that the velocities of A and B are perpendicular to one another
A completely mixed retention basin is used to treat an industrial waste water consisting of a non-conservative pollutant, using a reaction that destroys the pollutant according to first-order reaction kinetics, with k = 0.216/day
The present worth of an increasing geometric gradient is $23,632. The interest rate is 10% per year, and the rate of change is 4% per year. If the cash flow amount in year 1 is $3000, compute the year in which the gradient ends?
SAMPLE B:has size 10,mean 20 and variance 36 .calculate pooled sample variance
A meat packing plant manager is trying to decide between twodifferent methods for cooling cooked hams. the spray methodinvolves spraying water over the hams until the ham temperature isreduced to 30 degrees Celcius. With this method approximately 80l..
How does the engineering classification of soils differ from he engineering classification of rocks
compare with the case of static equilibrium in the same position.
A circular footing of diameter B is expected to carry a column load with some eccentricity. The moment of inertia of the footing about its diameter is piB^4/64. What would be the maximum eccentricity
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