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A 75-N force acts at point A on the high-pressure water cock. Replace this force with
(a) a force-couple system, the force of which acts at point B; and
(b) two horizontal forces, one acting at point B and the other acting at point C.
In a car engine gasoline (assume octane C8H18) is evaporated and then mixed with air in a ratio of 1:15 by mass. In the cylinder the mixture is at 750 kPa, 650 K when the spark fires. For that time find the partial pressure of the octane and the spec..
natural gas with a lower heating value lhv of 45000 kjkg is burned on a gas stove with a combustion efficiency of 94.7
a venture necked-down section in a pipe develops a low pressure that can aspire fluid upward from a reservoir. derive
a 45 kg machine is mounted on a spring of stiffness 8 times 10 5 nm. when the machine operates at 32 hz. the machines
Calculate the fractional conversion of pentane achieved in the furnace and the volumetric flow rates (L/min) of the feed air, the gas leaving the condenser, and the liquid condensate before its components are separated.
At what equivalence ratio for octane-air mixtures does the carbon to oxygen ratio of the system equal one? Why is this of interest?
a 0.2 m3 tank containing helium at bar and 22 c will be used to supply 4.5 moles per minute of helium at atmospheric
boat a and boat b leave from point o the origin at the same time. boat a is traveling at 20 fts 30 degrees west of
Stanford University is adding on to their biological research facility. The new facility will be 40 ft x 40 ft x 8 ft and can house 3000 laboratory mice. The indoor conditions must be maintained 75 F, 60% relative humidity when the outdoor conditions..
1 a presser relief valve has a pressure setting of 1500 psi. compute the horsepower loss across the valve if it returns
how does the total free energy for transformation ?gtotal vary for a liquid-solid transformation versus that for a
During a certain activity, a hinged knee prosthesis (material is CoCr - Endurance Strength = 330 MPa) is subjected to a cyclically varying bending moment with a mean value of 0 N mm.
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