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A rotating machine weighing 4000 lb has an operating speed of 2000 rpm.
It is desired to reduce the amplitude of the transmitted force by 80% using isolation pads. Calculate the stiffness required of the isolation pads to accomplish this design goal.
Heat in the amount of 100 kJ is transferred directly from a hot reservoir at 1200 K to a reservoir at 600 K. Calculate the entropy change of the two reservoirs and determine if the increase of entropy principle is satisfied.
Hookes Law (Stress equals Young’s Modulus times Strain; or s=Ee) is valid for both linear tensile behaviour and torsion (or shear) as well (e.g. t=Gg). Imagine a shear test of annealed, mild steel (e.g. AISI 1020). It is sheared until it just starts ..
a 25 mm diameter uniform steel shaft is 600 mm long between bearings.a find the lowest critical speed of the shaftb if
the steel bolt and anchor assembly is used to reinforce the roof of a passageway in an underground coal mine. in
Calculate the average heat transfer coefficient if the tube wall is maintained at a temperature of 200oC and it is 2 m long.
if a piping system is designed and sized for a uniform pressure loss of 4 psi per 100 feet of piping and the
The temperature outside a house is -20-C and inside it is 20-C. What is the ratio of the density of the outside air to the density of the inside air? Would in?ltration, which results from cracks around the windows, doors, and siding, etc., occur e..
A hypothetical A-B alloy of composition 56 wt% B-44 wt% A at some temperature is found to consist of mass fractions of 0.5 for both alpha and beta phases. If the composition of the beta phase is 88 wt% B-12 wt% A, what is the composition of the alpha..
The U-235 and U-238 masses in natural uranium are split between enriched and depleted streams as a result of an enrichment process. If the input masses and output enrichments are specified, mass conservation determines the maximum (i.e. zero-loss) qu..
Write down the Jordan canonical form of A.
A counter flow condenser that is employed in a steam power plant handles 32,000 kg/hr of saturated steam at 52 °C. The cooling water enters the condenser at 17 °C and leaves at 28 °C. The tubes are 20 mm inside diameter and 27 mm outside diameter.
consider some hypothetical x - y - ion pair for which the equilibrium interionic spacing and bonding energy values are
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