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A household refrigerator with a coefficient of performance of 2.4 removes energy from the refrigerated space at a rate of 600 KJ/h. Evaluating electricity at $0.08 per determine the cost of electricity in a month when the refrigerator operates for 360 hours in that month.
Wheel of radius r is driven by an arm OA. It is driving (without slip) wheel of a radius r2 which is fixed to a drum of radius r1. Load G is attached to the rope which winds on the drum. Calculate the speed of load G if the arm OA moves at n rev/m..
air at 2900 r 435 psia enters a turbine operating at steady state and expands adiabatically to the exit where the
a carnot heat engine receives heat from a reservoir at 900c at a rate of 800 kjmin and rejects the waste heat to the
a high-strength steel drill rod used for boring a hole in the earth has a diameter of 0.5 in. the allowable shear
Load that can be lifted by aerostat balloon An aerostat balloon is filled with hydrogen. It has a volume of 1000m^3 at constant air temperature of 27 degree C and pressure of 0.98bar.
the piston-cylinder assembly shown in the figure is fitted with a linear spring. the spring constant is k 15 knm and
a wind turbine of the 3-bladed propeller type having 50 efficiency generates 2 mwe when the wind speed is 14 ms. the
i want the same tutor who did my last assignment fluids mechanices
to analyze the motion of a body that is traveling along a curved path to determine the bodys acceleration velocity and
Motor M draws in the cable with an acceleration of 4 ft/s2, measured relative to the 200-lb mine car. Determine the acceleration of the car and the tension in the cable. Neglect the mass of the pulleys.
one kilogram of carbon dioxide is compressed from 1 mpa and 200 degrees celsius to 3 mpa in a piston cylinder devise
a robotic-wheeled vehicle that contains science instruments is used to study the geology of mars. the rover weighs 408
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