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A refrigerator in a kitchen at 20 degrees Celsius uses R-134a. The freezer is to be kept at -5 degrees Celsius or cooler. What is the maximum pressure that can be used in the evaporator? Why?
you are watching an object that is moving in shm. when the object is displaced 0.600m to the right of its equilibrium
a ten-station rotary indexing machine performs nine machining operations at nine workstations and the tenth station is
What is the nozzle-exit-to-throat area ratio for case (a)? The gross thrust is the contribution to engine thrust made by the exhaust nozzle only.
Consider a flow with a pressure and temperature of 2332 lb/ft2 and 498 deg. R, respectively. A Pitot tube is inserted into this flow and measures a pressure of 8065.2 lb/ft2. What is the velocity of this flow? Is the flow supersonic? Use appen..
a 4.0 a current is set up in a circuit for 7.0 min by a rechargeable battery with a 3.0 v emf. by how much is the
a small household refrigerator is used to cool 20 liters of water initially at 22 degrees c. the cop of the
how do you calculate the strain of a solid cantilever bending beam fixed at one end if given curvature of 0.0243 m and
an air conditioner uses r134 the condenser pressure is 1400 kpa and the evaporator pressure is 201 kpa. find the cycle
A gas is contained in a piston of 5 m^3 at 100 KPa. Then the gas is compressed till its volume is reduced to 2.5 m^3. If there was no exchange of heat from the system during the compression process, calculate the work required for the compression and..
An ideal Rankine cycle uses water as its working fluid. The mass flow rate of water through the cycle is 150 kg/s. saturated vapour enters the turbine at 15 MPa and saturated liquid enters the pump at 10 kPa. Cooling water passes through the condense..
a 3 cm thick stainless steel thermal diffusivity 0.0000044 k16.3 initially at 500degc is suddenly exposed to convective
the block b is suspended from a cable that is attached to the block at e wraps around three pulleys and is tied to the
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