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A high-pressure oxygen cylinder, typically found in most welding shops, accidentally is knocked over and the valve on top of the cylinder breaks off. This creates a hole with a radius of 14 mm. Prior to the accident, the internal pressure of the oxygen is 14 MPa and the temperature is 27 °C. The velocity of the oxygen exiting the cylinder is estimated to be 300 m/s, the exit pressure 7.4 MPa and the exit temperature 250 K. How much thrust does the oxygen flow being expelled from the cylinder generate? Atmospheric pressure is 101 kPa. Assume R = 259.82 J/kg.K.
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After one particularly wild night at the bars, Jon decides to come home and jump on his bed .Assume that he's jumping directly in between one steel support beam that's 10 foot long, 2 inches wide and 1 inch thick. Further assume that Jon weighs aroun..
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Refrigerant 22 enters an insulated compressor operating at steady state as saturated vapor at 16oC with a mass flow rate of 1.5 kg/s. Refrigerant exits at 7 bar, 70oC. Changes in KE and PE from inlet to exit can be ignored.
a u-tube manometer is initially filled with water but exposed to a pressure difference such that the water level on the
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a fluid flows in a pipe with a sudden increase in its cross section as shown in the sketch. assume that the pressure in
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