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Find the natural frequencies of the cantilever beam carrying an end mass M shown in Fig. 12.34, using a one-beam element idealization.
A fan accelerates air (at atmospheric pressure and 300K) from a rest to 5m/s. The fan mass flow rate of air is 1.2 kg/s. What is the minimum amount of power this fan must consume to operate under these conditions?
bullet moving at a velocity of 1000 ms through air at sea-level conditions. what are the maximum temperature and
an air-standard otto cycle has a compression ratio of 7.5. at the beginning of compression p1 85 kpa and t1 305 k.
What is the mean molar mass of an ideal gas that has a specific heat ratio (k) of 1.11, and a specific heat at constant pressure of 1.680 kJ/kg K?
the air velocity in a duct is measured by a Pitot-static probe connected to a differential pressure gage. if the air is at 13.4 psia absolute and 70 degrees C and the reading of the differential pressure gage is 0.15 psi, determine the air velocit..
A heat engine (HE) of 35 % thermal efficiency is used to drive a refrigerator having a COP of 4 , what is the heat input into the engine for each MJ removed from the cold body by the refrigerator? If this system is used as a heat pump, how many MJ of..
an engineer determines that a 40 cm long rod of 1020 grade steel will be subjected to a tension of 20 kn. the following
Lawn mower engines normally have finned surfaces directly attached to the engine block, with no radiator, in order to achieve the required cooling. Why might the cooling strategies be different in these two applications?
a tank 1.5m high stands on a trolley and is full of water. it has an orifice of diameter 0.1m at 0.3m from the bottom
12. 3 kg of refrigerant 22 undergoes a process for which the pressure-specific volume relation is pv^-0.8 = constant. The initial state of the refrigerant is 12 bar and 60 degrees C. The final pressure is 8 bar. Kinetic and potential energy effects a..
a distillation column with a total condenser and a partial reboiler is separating two feeds. the first feed is a
a heat-engine of 32 thermal efficiency is used to drive a refrigerator having coefficient of performance of 5.
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