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A window-mounted room air conditioner removes energy by heat transfer from a room and rejects energy by heat transfer to the outside air. For steady -state operation, the air conditioner cycle requires a power input of 0.434kw and has a coefficient of performance of 6.22.
a) Determine the rate that energy is removed from the room air, in kW.
b) If electricity is valued at $0.1/kW*h , determine the cost of operation for 24 hours of operation.
carbon monoxide is initially in a 50 l tank at 210 kpa and 127c.a determine the mass of the gas in kilograms.b if 0.02
For an assembly line, you need to design a linkage that moves a point P in approximately a straight line over a distance of 24” in one second. It is also specified that P must return from the endpoint back to the starting point in five seconds, givin..
hot exhaust gases leaving an internal combustion engine at 400oc and 150 kpa at a rate of 0.8 kgs is to be used to
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A thin film of constant thickness, h, flows down an angled plate due to the influence of gravity. Using mue? for the viscosity and reo? for the density of the fluid, find the velocity profile u(y) following the coordinates below. Clearly state all as..
This crate holding 40 bricks, each of mass 1.3kg, is placed on a hydraulic lifting beam as shown. State the order of the lever used here. Calculate the effort required to lift the load. Calculate the mechanical advantage for this system.
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the pressure in an automobile tire depends on the temperature of the air in the tire. when the air temperature is 25
determine the power needed to drive the low speed turbine given maximum velocity in the test section 140 mih with 12 x
determine the internal energy change of air in a rigid container as its temperature is increased by transferring
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