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Air, modeled as an ideal gas, is compressed at a steady state from 1 bar, 300 K, to 5 bar, 500k with150 kW of power input. Heat transfer occurs at a rate of 20 kW from teh air to cooling water circulating in a water jacket enclosing the compressor. Neglecting kinetic and potential energy effects, determine the mass flow rate of the air, in kg/s
when the tucurui dam was constructed in northern brazil the lake that was created covered a large forest. underwater
an opaque horizontal plate has a thickness of l21 mm and thermal conductivity k25 wmk. water flows adjacent to the
a 20deg steel spur pinion with 25 teeth and module 1.5 mm transmits 150 w to a 49 tooth cast iron gear. pinion speed is
if the velocity v of a paticle moving along a straight line decreases linearly with its displacement from 20ms to a
Average pressure at end of stroke? Upsetting force required at the end of the stroke? If friction is neglected, what is the amount of upsetting force?
an insualed piston-cylinder device contains 5 kg of satured mix of water initially at 100kpa and 6m3. now 3917kj of
a very thin copper plate coated with carbon black exchanges radiant energy with a blackbody plate at 1000 degree c. its
strarting from x 0 with no initial velocity a particle is given an acceleration a 0.1 squere root v216 where a
a 5 ft3 tank containing steam at 14.7 psia 1 quality is fitted with a relief valve. heat is transferred to the tank
water enters a turbine at 500oc and 6 mpa and leaves at 10 kpa what is the work output per unit mass if the turbine is
An ordinary egg can be approximated as a 5.78 cm diameter sphere. The egg is initially at a temperature of 7.9C and is dropped into boiling water at 97C. Taking the properties of the egg to be p=1020 and cp=3.32. Determine how much heat is transferre..
What specific materials are used for solar cells? What specific properties these materials process in order for the solar cells to the function properly?
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