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The aircraft carrier is moving at a constant speed and launches a jet plane with a mass of 3 Mg in a distance of 75 m along the deck by means of a steam-driven catapult. If the plane leaves the deck with a velocity of 240 km/h relative to the carrier and if the jet thrust is constant at 22 kN during takeoff, compute the constant force P exerted by the catapult on the airplane during the 75-m travel of the launch carriage.
Would you recommend a simple refrigeration cycle with refrigerant-134a or a two-stage cascade refrigeration cycle with a different refrigerant at the bottoming cycle? Why?
The 1-hr UH in the table was recorded for a particular watershed. Determine the size of the watershed in acres and then convert the 1-hr UH into a 3-hr UH for the watershed.
A chalk core plug having a pore volume of 17.0307 cm3 is fully saturated with reservoir brine. A synthetic oil flood is conducted on this plug. It is found that 12.25 cm3 of reservoir brine was displaced from this plug by the synthetic oil.
The tank contains water to depth of 2m and oil (SG=0.8) on top of the water to a depth of 1m. Determine the magnitude and location of the resultant force acting on one end of the tank (i.e. 3m high by 3m wide).
If the queue clears exactly at the end of the effective green D/D/1 queuing applies, determine the total vehicle delay in the cycle (in veh-sec) .
The aquifer characteristics are: Ambient temperature=8 oC Hydraulic conductivity = 123 ft/day Hydraulic gradient = 0.00091 ft/ft Effective porosity = 0.31 Total organic carbon = 198 mg/kg Bulk density = 1.65 g/cm3
Maximum shear stress both in the tube and sleeve is 16000 psi. Calculate the fluid pressure, and determine the pressure between the sleeve and cylinder when the fluid pressure is absent.
A vehicle pulls out onto a single lane highway that has a flow rate of 280 veh/h (poisson distributed). The driver of the vehicle does not look for oncoming traffic
A steel I beam is supported by a pin at point A and a rocker at B, and a cable applies a 2000lb force. The beam is uniform and weighs 26 lb/ft. Determine the support reactions.
part-1your company operates an underground nickel mine producing 1.2 million tonnes of ore at a grade of 2.8 nickel.
Three loads are applied to a beam. the beam is supported by a roller at A and by a pin at B. neglecting the weight of the beam, determine the reaction at A and B when P=15kips.
Q. Briefly explain the purpose of the International Space Station, and list the name of all space agencies involved in building and operating it. When is the assembly of the station expected to be completed? Include the name and the expected date ..
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