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Electrical work is employed to heat 2kg of water from 298.15 K to 373.15 K. Determine the electrical work required, and the minimum work required (e.g., by using a heat pump instead).
The specific heat for water is 4.184 kJ/kgK and the ambient is at T = 298.15 K, 1 bar.
The ball A is moving with constant velocity of 2 m/s and hits ball B. The ball B and C are at rest and they are connected with an unreformed spring with k= 100 N/m. All three balls are identical with 200 kg mass. Assume the impact between A and B is ..
an aluminum e 9100 ksi control rod with a circular cross section must not stretch more than 0.24 in. when the tension
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draw a complete schematic diagram show arrows symbols amp numeric values for each w amp amp q amp . consider the steady
A refrigerator is maintained at 5°C by removing heat from the refrigerated space at 18,000 kJ/hr. The power input to the refrigerator is 1500 W and the surrounding air is at 36° C.
the temperature and pressure at the surface of mars during a martian spring day were determined to be -56 oc and 433 pa
A group of mechanical engineers like catamaran sailing on the Great Salt Lake and decide to use a glass-fiber reinforced composite with a high fiber fraction for a new boat design. The composite is 60 volume % SiO2 glass fibers and the remainder is a..
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Find the adiabatic flame temperature for methane burned in: (a) 110% theoretical air and (b) 110% theoretical oxygen enriched air (30% O2, 70% N2 by volume) Please explain in DETAIL
helium gas flows through a well-insulated nozzle at steady state. the temperature and velocity at the inlet are 550or
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