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In one cycle a heat engine absorbs 480 J from a high-temperature reservoir and expels 300 J to a low-temperature reservoir. If the efficiency of this engine is 58% of the efficiency of a Carnot engine, what is the ratio of the low temperature to the high temperature in the Carnot engine?
you are required to investigate the dynamic movement of a mass m sliding along a rod as shown in the diagram below. the
Assuming the plant operates on the ideal vapor-compression cycle using refrigerant 134-a between the pressure limits of 120 and 700 kPa, determine
As shown, a 130 lb bungee jumper wants to jump from the top of a 655 ft high bridge and be able to just touch the water below. Given that the bungee cord has a spring constant of 2.33 lb/ft, what should the bungee cord's relaxed length, l, be for ..
a large vessel had experienced an internal leak of a coolant. it was friday and the work crew needed to get the vessel
calculate the quality of the system to begin with. calculate the amount of liquid water to begin with. calculate the heat transfer during the heating process.
Determining Feasibility, At steady state, a new power cycle is claimed by its inventor to develop 6 horsepower for a heat addition rate of 400 Btu/min
What is the mass flow rate of oxygen in lbm/s? Note that the inside diameter of a nominal 2 inch schedule 40 steel pipe is 2.067inches. Assume ideal gas principles apply.
(a) Find the angular velocity of link CD and the velocity of the pin relative to the slot in link CD. (b) Find the angular acceleration of link CD and the acceleration of the pin relative to the slot in link CD.
an industrial water shutoff valve is designed to operate with 40lbs of force and will encounter 150lbs of resistance
a particle of mass m is at rest at the origin of a coordinate system.nbsp at t 0 a force of the form f bt2e-lambdat
Calculate the force required to punch out a rectangular hole 100m x 50mm in a 2mm thick aluminium sheet. The ultimate strength in shear is 125 MN/m^2.
Two kilograms of air within a piston-cylinder assembly execute a carnot power cycle with maximum and minimum temperatures of 750k and 300k, respectively.
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