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A Steam-powered catapult on an aircraft carrier accelerates a 16000-kg aircraft from zero to 320 km/h in 2 seconds. Assume that the acceleration is constant. A) Determine the work done by the catapult on the aircraft. B) Determine the kinetic energy of the aircraft at the moment it takes off.
A piston-cylinder device is insulated and contains 0.005 m3 of saturated liquid water at a constant pressure of l50 kPa. An electric resistance heater inside the cylinder is now turned on, and 1800 kJ of energy is transferred to the steam.
The device is used to hold an elevator door open. If the spring has a stiffness of k = 50N/m and it is compressed 0.17m, determine the horizontal and vertical components of reaction at the pin A and the resultant force at the wheel bearing B.
you have been hired to develop a package transfer slide for a global company. the slide has length l. the slide is to
Calculate the surface area available inside the heat exchanger.
an ideal chiller uses refrigerant 134a and operates between a low-side pressure of 36 psia and a highside pressure of
a transparent rigid sealed container has a volume of 10m3. the upper half of the container holds steam of density 5kgm3
an enclosure box surrounds some electronics that draw 25 w of electrical power. for heat transfer we will just consider
Steam at 3 MPa,400 degree Celsius is expanded to 30 kPa, 92 percent isentropic efficency.The mass flow rate is 2 kg/s. Determine (a)the power output.
consider a piston-cylinder system containing 0.1 kg of water. initially the volume of the system is 0.0125m3 while the
air enters a steady-flow compressor with a specific enthalpy of 293.4 kjkg and a velocity of 60ms and leaves with a
the jib crane is supported by a pin a c and rod ab. the rod can withstand a maximum tension of 40kn. if the load has a
the thin-walled pipe has an inner diameter of 0.5 cm and a thickness of 0.025 cm. if it is subjected to an internal
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