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A machine with a rotating shaft has a total weight of 90 kg and is supported by springs. The damping constant for the system is found to be 525 N*s/m. The resonant speed is determined experimentally to be 1200 rpm and the corresponding amplitute of the main mass of the machine is 12.7 mm. Determine the amplitude for a speed of 2400 rpm.
Friction between the piston and cylinder wall can be neglected because the process occurs so slowly. For the air, determine the initial and final pressures in kPa and the boundary work for the process in kJ.
two perfectely black squares 10 ft x 10 ft are spaced 20 feet apart. what is the net rate of heat exchange between them
consider a cylinder containing 4 moles of compressed argon to 10 bar and 298 k. the cylinder is housed in a big lab
for each of the situations below an equation is proposed as a model to relate an independent variable to a dependent
you are attempting to set a world record for motorcycle jumping across a chasm. the chasm is 100 feet across and
in the movie eraser the bad guys had a gun that would shoot a 5 g aluminum slug at one quarter the speed of light. lets
a man is changing his tire at the top of a hill. he is rolling the spare at 4.83 fts when he loses control and the
air at 30 celcius and 2 mpa flows at steady state in a horizontal pipeline with a velocity of 25ms . it passes through
when tomatoes are broken or crushed for processing into liquid products such as juice or sauce they must be heated
the interior contents and materials of a small building weigh 25 tons and together they have an average specific heat
consider a reheat cycle with steam leaving the boiler and entering the turbine at 4 mpa and 400 c . after expanded in
For this same component and alloy, compute the stress level at which fracture will occur for a critical internal crack length of 6.0mm.
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