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A mass of 1200kg of fish at 20 celsius is to be frozen solid at -20 celsius. The freezing point of the fish is -2.2 celsius and the specific heats above and below the freezing point are 3.2 and 1.7 kJ/kg·K, respectively. The heat of fusion ( the amount of hear needed to freeze 1 kg of fish ). Find the heat transfered.
the adjoining figure illustrates a piston-cylinder arrangement. this cylinder contains helium at 21oc and 1.379 mpa.
a room with insulated walls is initially at the outdoor temperature of 21degc. the room contains a 100-w light-bulb a
a16 lb bowling ball is rolling with a velocity of 20 fts toward a ramp that is inclined at 20 degrees to the
helium at 810 r 45 ibfin2 and a velovity of 10 fts enters an insulated nozzle operating at steady state and exits at
at the beach atmospheric pressure is 1025 mbar. you dive 15 m down in the ocean and you later climb a hill up to 250 m
1 a flat bottomed test tube of 200mm height and 10mm internal diameter stands on its base. it initially contains a
a chicken has a mass of 2.2 kg and a specific heat of 3.54 kjkgc. the chickens are cooled by water that enters the heat
The velocity at the inlet is controlled so that it changes according to the following expression. V=a-ct^2, where a = 20m/s, c- 0.8m/s. If the tank initially contains 3kg of liquid water, determine the final mass at the end if 4 seconds of flow.
tin cans are made of a steel the inside of which is cated with a thin layer of tin. the tin protects the steel from
a pitot-static probe connected to a water manometer is used to measure the velocity of air. if the de?ection
if p150kn determine the elastic elongation of rod bc and the decrease in its diameter. rod bc is made of a-36 steel and
a cylinder subjected to internal pressure pi only is made of cast iron having ultimate tensile strengths in tension and
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