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An inventor claims to have developed a device that executes a power cycle while operating between reservoirs at 500 and 300 K that has a thermal efficiency of (a) 45%, (b) 40%, (c) 35%. Evaluate the claim for each case.
a fully loaded lorry has a mass of 10 tonnes and is travelling along a road at uniform velocity when the brakes are applied and the lorry is brought to rest. if the deceleration is 2m/s2 and the coefficient of rolling friction is 0.15, determine t..
Air enters a machine at 373 C with a speed of 200 m/s and leaves it at 293 C. If the flow is adiabatic, and the work output by machine is 105 Nm /kg, what is the exit air speed? What is the exit air speed when machine is delivering no work?
A trapezoidal channel made out of brick, with bottom width 6ft and with bottom slope 0.001
1. determine the amount of excavation needed for the basement. a 2 foot working distance is required and the
an adiabatic and reversible steam turbine receives steam at 1 mpa and 300 degrees c. the exit pressure is 100 kpa.
a machine is found to vibrate with simple harmonic motion at a frequency of 20hz and an amplitude of acceleration of
a two-phase liquid vapor mixture of water has a temperature of 300 c and a quality of 75. the mixture occupies a volume
Primary Task Response: Within the Discussion Board area, write 800-1000 words that respond to the following questions with your thoughts, ideas, and comments. This will be the foundation for future discussions by your classmates. Be substantive..
Determine the temperature at which the liquid in the tank is completely vaporized. Also show the process on a T-v diagram with respect to saturation lines.
The heat transfer coefficient in the oven is 25W/m^2K. Calculate rate of heat transfer per m^2 area.
a ferromagnetic material has a remanence of 1.0 tesla and a coercivity of 15000 am. saturation is achieved at a
a 1500 kg car is traveling up on a road with a slope of 15 i.e. rise of 15 on a run of 100 at a constant speed. knowing
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