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An aircraft is in level flight at 225 km/hr through air at standard conditions. The lift coefficient at this speed is 0.45 and the drag coefficient is 0.065. The mass of the aircraft is 900 kg. Calculate the lift area for the craft, and the requried engine thrust and power.
air is compressed in a piston-cylinder device from 90 kpa and 20 degrees c to 400 kpa in a reversible isothermal
a 50 cm long 800 w electric resistance heating element with diameter .5 cm and surface temperature 120c is immersed in 60 kg of water temperature to 80c. also determine the convection heat transfer coefficients at the beginning and at the end of t..
one kilogram of water contained in a piston-cylinder assembly initially at 160oc 150 kpa undergoes an isothermal
how long would it take to use up current reserves? suppose the total resource is five times current reserves; if the use rate continues to grow at 2.6 percent, how long would it take to use up the resource?
consider the thin-walled beam section illustrated in the figure below. the beam has a vertical load of v 500 kn acting
Motor M draws in the cable with an acceleration of 4 ft/s2, measured relative to the 200-lb mine car. Determine the acceleration of the car and the tension in the cable. Neglect the mass of the pulleys.
Name products that are manufactured using these processes and write two sentences on why you know it's made from this process.
a disk has a mass of 4kg and a radius of 90mm it is at rest when it is placed in contact with the belt which moves with
a nucleus has 4 excited states at 0.123 mev 0.216 mev 0.401 and 0.555 mev above the ground state. if all transitions
a beam of light is emitted in a pool of water from a depth of 69.7 cm. where must it strike the air water interface
find (a) the power rating of the electric heater and (b) the temperature rise that the air experiences each time it passes through the heater.
water is pumped from a lake to a storage tank 20 m above at a rate of 70 ls while consuming 20.4 kw of electric power.
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