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A fire hose has a length of 100 feet , is 4 inches in diameter and has a roughness of 1/4inch. The fire hose leads into a nozzle that narrows from 4 inches diameter at the inlet to 2 inches at the outlet. The pressure at the nozzle inlet is 75 lbf/in^2 and atmospheric pressure (14.7 lbf/in^2) at the outlet.
What is the velocity of water at the nozzle outlet? Assume viscous effects are negligible and the elevation change between the nozzle inlet and outlet is negligible.
gears a and b have a mass of 50kg and 15kg respectivly. their radii of gyration about their respective centers of mass
a hollow shaft has an outsaid diameter of 35 mm and an insaid diameter of 25 mm complute the torsional shear stress in
A dockworker applies a constant horizontal force of 71.0 to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 11.5 in a time 5.00 . what is the mass of the ice block?
Draw the Mohr's circle for this stress state, deterrnine the principal stresses and the angle of the principal direction to the x-axis and determine the maximum shear stress.
water is pumped from a lower reservoir to a higher reservoir by a pump that provides 21 kw of shaft power. the free
1. for the connection shown in figure assuming the bolts are frac34- in. diameter and the angle and plate astm a36
determine the actual and minimum theoretical operating costs, each in $/day.
refrigerant 134-a flows through a compressor at a rate of 0.125 kgs. the compressor inlet conditions are 140 kpa and
consider a steam power cycle in which saturated water vapor at 25 bar state 1 enters an adiabatic steam turbine. at
the coefficient of friction between the load and the flat-bed trailer shown is 0.4. knowing that the speed of the rig
at a ski resort water at 40 f is pumped through a 3-in diameter 2000ft long steel pipe from a pond at an elevation of
a formula-1 car encounters a hump which has a circular shape with smooth transitions at either end. a what speed vb
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