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It is known that a long log floats with its axis horizontal. A very short log, however, floats with its axis vertical. Determine the maximum length of a cylindrical walnut log 30 cm in diameter that will cause it to float with its axis vertical.
A steam plant operates on a Rankine cycle. The following conditions are given: The steam exits the boiler at 550C and 15MPa. The heat supplied to the boiler is at 1000C. The condenser pressure is 8kPa. The flow exits the condenser with 4C of subcooli..
500kg of air at 35 degrees Celsius dry-bulb and 20 degrees Celsius wet-bulb temperatures is cooled to 13 degrees Celsius dry-bulb and 90% relative humidity. Decide the amount of heat transfer from the air in MJ
a vapor-compression refregeration i.e. reverse rankine system circulates refrigerant 134a at a rate of 6kgmin. the
water from a reservoir maintained at 20 deg c is pumped steadily along a horizontal pipe from which it is discharged
A piston cylinder device contains 3 kg of air at 300 kPa and 25°C. During a quasiequilibrium isothermal expansion process, 20 kJ of boundary work is done by the system, and 8 kJ of paddlewheel work is done on the system. The heat transfer during th..
consider an ideal steam combined reheat and regenerative cycle in which steam enters the high-pressure turbine at 500
a partitioned chamber that is well insulated has frac12 filled with h2o at 500 deg f and 50 psia and the other frac12 a
a simplified gear system for a mechanical watch is shown. knowing that gear a has a constant angular velocity of 1
a spherical balloon with a diameter of 6 m is filled with helium at 20degc and 200 kpa absolute. determine the number
a drilling operation is required to machine 82.0 in. diameter holes on a 20 in. diameter bolt cirile workpiece
a in a short section of a channel carrying a steady discharge of 36 m3s the depth is seen to increase from 1.6 m to
a diffuser in a jet airplane intake system is instrumented to give readings of stagnation temperature and stagnation
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