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A heat engine accepts 200,000 kJ of heat from a source at 800 K and rejects 100,000 kJ of heat to a sink at 300 K. Calculate the entropy change of all the components of this engine and determine if it is completely reversible. How much total work does it produced?
We are learning about oscillations and second-order dynamic systems. We observe a crane at a construction site on campus and notice that as soon as the crane operator releases the load, the whole crane oscillates back and forth several times as the v..
an air conditioner can produce a 120 kjmin cooling effect while rejecting 2.5kw of heat. what is its cop and the
for the following signals 1024 points were sampled.a 621 hz signal sampled at 850 hzb 1072 hz signal sampled at 1600
calculate the speed of an iceberg driven by wind on its exposed not submerged surface. model the iceberg as a cylinder
an ideal brayton cycle with regeneration has a pressure ratio of 10. air enters the compressor at 300k and the turbine
the position of a particle moving in a curvilinear path is given by thetacos2t where theta units are radians and t
a closed tank contains water and heating oil sg0.96 and is completely full of the two liquids with no air space at the
Obtain an expression for the thermal efficiency of a single reversible power cycle operating between hot and cold reservoirs at TH and TC, respectively, in terms of the thermal efficiencies of the two cycles.
An octave is defined as a doubling of the frequency. The claim is made that a low-pass Butterworth filter of order n has a roll-off (attenuation) of 6n dB/octave. Calculate the gain in dB for a second-order filter for the cut-off frequency itself, an..
The power input to the compressor is 100 kW. A separate liquid cooling water stream flows through the heat exchanger. All data are for operation at steady state. Stray heat transfer with the surroundings can be neglected, as can all kinetic and po..
A piece of pipe 0.3048m long weighing 13.34N and having internal diameter of 0.05207m is slipped over a vertical shaft 0.0508m in diameter and allowed to fall. Calculate the approximate velocity attained by the pipe if a film of oil of kinematic visc..
Please draw a free body diagram of a structure, machine, object of your choice. Include the picture and source of the structure
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