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One quarter of a square of side a is removed (see figure). What are the coordinates and of the centroid C of the remaining area?
1. What percent reduction of the elastic modulus of alumina would be caused by 1% porosity?
An internal combustion engine is driving an electrical dynamometer. The torque arm length is 0.5 m and the force is 200 N. A tachometer indicates that the shaft speed is 3490 rpm. What are the engine torque and power output?
A gantry structure, similar to a tire swing, is used to test the response of an airplane during a crash. A 8000kg plane is hoisted back until the 20m swing cable is at theta=60. Determine the speed of the plane just before crashing into the ground at..
Gaseous propane at 77 oF is mixed with air at 300oF and ignited. What percentage theoretical air must be used if the temperature of the products is 1700oF? Assume an adiabatic process.
ball a of mass m 1 kg is projected from a spring activated gun as shown below. the spring has a constant of k 500nm.
two tanks tank a and tank b are separated by a partition. initially tank a contains 2-kg steam at 1 mpa and 300degc
a mass of 3kg of nitrogen at 100kpa and 20oc is contained in a piston-cylinder device. it is now expanded to a final
what is the reason for the system? -to increase the air pressure from 100 to 1200 kpa design uses dual compressors to
a vertical piston-cylinder device initially contains 0.25 m3 of air at 600 kpa andnbsp300degc. a valve connected to the
A turbine receives steam at 6MPa, 600 C with an exit pressure of 600 KPa. Assume the turbine is adiabatic and neglect kinetic energies. Find the exit temperature and the specific work
a heat engine operates between two reservoirs at 850c and 20c. one -half of the work output of the heat engine is used
Steam at 3 MPa, 400C enters a turbine with a volume flow rate of 5 m^3/s. An extraction of 15% of the inlet mass flow rate exits at 600 KPa, 200C. The rest exits the turbine at 20KPa with a quality of 90% and a velocity of 20 m/s. Determine the volum..
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