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A balanced wheel supported on springs is rotating at 1200 rpm. If a bolt weighing 15 g and located 5 cm from center suddenly comes loose and flies off, determine the buildup of vibration if the natural frequency of the system is 18 cps with damping of S=0.10.
why is communication with the customer so important? explain the twin dangers of making many changes or not enough
use constant specific heats at room temperature. round all answers to one decimal place. a simple brayton cycle
a building has a peak heating load equal to 18.3 kw and a peak cooling load of 23.8 kw. estimate the seasonal heating
Employing the ideal gas model, determine the change in specific entropy between the indicated states, in Btu/lbmol?ºR. Solve 2 ways: Use the appropriate ideal gas table AND also by using a constant specific heat value.
some hypothetical metal has the simple cubic crystal structure i.e. atoms positioned at each of the eight corners with
a fluid is held between a lower place of temperature t1 and an upper place of temperature t2 the distance between the
Determine the normal force R between the wheel and the horizontal surface. Neglect the weight of the horizontal shaft.
a system consists of nitrogen n2 in a piston-cylinder assembly initially at p1 20 lbfin2 and occupying a volume of
derive a relationship between partial molar excess enthalpy activity coefficient of species i and temperature. assume
a mass of 3kg of nitrogen at 100kpa and 20oc is contained in a piston-cylinder device. it is now expanded to a final
How significant have advances in information and communication technologies since the late 1980's been on how we do business? And how have the major types of businesses that exist changed over this time?
a car that weighs 3000 lb is traveling on a hill at a constant speed of 40.1 fps. the crest of the hill has a radius of
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