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There is 0.7kg of nitrogen in a piston-cylinder device. Initially the nitrogen is at 110kPa and 25 celcius and then it is compressed slowly in a polytropic process during which PV^1.2=constant until the volume is reduced by one-half. Determine the work done on the system and the heat loss.
an in-line tube bank is constructed of 1 inch diameter tubes with 15 rows transverse to the flow 7 rows in the floe
during practice a player p punts a ball b with a speed vo25 fts at an angle theta 60 degrees and at a height h from
for each case determine the specified property value and locate the state by hand on sketches of the p-v and t-v
determine head loss and the power required to overcome it given efficiency 73 power of the pump 12hp height 35ft water
a steam power plant operates on an ideal reheat-regenerative rankine cycle and has a netnbsppower output of 80 mw.
some pollution like the now banned toxic pesticide ddt dichlorodiphenyldicholorethaneand its relative dde
an airplane a takes off as shown with a constant speed equal to v110kmh. the path of the airplane is described in the
a compressor used to deliver 2.10 kgmin of high pressure air requires 8.087 kw to operate. at the compressor inlet the
a piston cylinder arrangement has two compartments a and b filled with water as shown in the figurebelow. compartment a
a 3-kg stone is dropped from height h and strikes the ground with a velocity of 30ms. a determine the kinetic energy of
You are designing a remote-area power supply based on a miniature wind turbine that is 20% efficient. Meteorological data indicates an average wind speed of 24 km/h at an air temperature of 10oC and pressure of 0.9 atm. The rotor has a diameter of..
an engineering student considers using a fan as a levitation demonstation. she plans to face the box-enclosed fanso the
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