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An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air is at 100kPa and 17°C and 800kJ/kg of heat is transferred to air during the constant-volume heat-addition process. Accounting for the variation of specific heat of air with temperature, determine (a) the maximum temperatureand pressure that occur during the cycle, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle.
whole blood is placed in a concentric cylindern viscometer. the gap width is 1 mm and the inner cylinder radius is 30
Water at 200KPa with a quality of 25%has it temperature raised to 20degrees celcius in a constant pressure process. What is the new quality and volume?
a 6.5m tall tank has a rectangular cross?section and is filled with water to a depth of 3.5m. assuming the pressure on
A hollow cylinder steel column of 5 m high is shortens by 0.03 cm under a compression load of 40, 000 kg. If the inner radius of the cylinder is 0.08 of the outer one, what is the outer radius?
a 0.2-cm-thick 10-cm-high and 15-cm-long circuit board houses electronic components on one side that dissipate a total
the force f of magnitude 800 n is to be resolved into two components along the lines a-a and b-b. determine by
a refrigeration remove 12 kj of heat from a body when working between 24 k and 310 k if the coefficient of performance
If cable spacing is 1 m into the paper, what is the cable tension.
In an ore minig operation, a bucket full of ore is suspended from a traveling crane which moves slowly along a stationary bridge. The bucket is to swing no more than 4m horizontally when the crane is brought to a sudden stop. Determine the maximum..
a cylindrical nuclear fuel rod under steady conditions in a cooling bath has a 2-d temperature distribution of
a large sphere i25mr2 rolls without slipping pure rolling across a horizontal surface. the sphere has a constant
the characteristic equation of a certain system is s210ds29d20 where d is a constant. a for what values of d is the
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