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An insulated piston-cylinder device contains 5 L of saturated liquid water at a constant pressure of 150 kPa. An electric resistance heater inside the cylinder is now turned on, and 2200 kJ of energy is transferred to the steam. Determine the entropy change of the water during this process.
a heat exchanger is to cool ethylene glycol cp 2.56 kjkg degree c flowing at a rate of 3.2 kgs from 80 degree c to 40
when a force is transferred to another point of the body indicate which of the following quantities remain unchanged
A satellite is in Earth with an altitude at perigee of 550 km and an altitude at apogee of 5000 km.
at a particular location in the ocean the temperature near the surface is 80of and the temperature at a depth of 1500
helium initially at 160degf and 30 psia is slowly withdrawn from a well-insulated rigid tank of volume 7 ft2 until the
a clock is slow such that it falls behind 15.2 min in every hour. calculate the angular velocity of its second hand the
Geometric angle of attack, The Piper Cherokee has a wing area of 170 ft2 and a wing span of 32 ft. Its maximum gross weight is 2450 lbs. The wing uses a NACA 65-415 airfoil, which has a lift slope of 0.10331deg^-1 and alpha(L=0)= -3.0deg. Assume th..
what are the properties of petrol that it make particularly suitable for the use as fuel in a motor vehicle.
a rigid container equipped with a stirring device contains 1.5 kg of motor oil. determine the rate of specific energy
a 3-ft-diameter circular plate is located in the vertical side of an open tank containing gasoline. the resultant force
a well-insulate compressor take in air at 80of at 14.7 psi with a volumetric flow of 1200 ft3min. the compress air
in usa 53 of total electric power is currently generated by coal-fired power plants. typically generation of 1 kwh of
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