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Air enters an adiabatic compressor at 20 °C and 100 kPa at a rate of 2 kg/s, and exits at 700 kPa. If the power input to the compressor is 460 kW, determine the isentropic efficiency of the compressor.
energy in the home personal energy use and home energy efficiency. nbspestimate your personal annual energy usage for
Discuss the factors beyond crystal structure, quenching and temperature that affect he results of a specimen in a Charpy V notch impact testing.
how does the energy use for the typical family vehicle compare with that for the typical hot water heater? what are the
How is the technology utilized effectively or ineffectively? What are some barriers to more effective usage, and what are some recommendations you would make to overcome these barriers?
A steady flow air compressor compresses 50 lb/min from 14 psia and 80 degrees F to a discharge state at 45 psia and 300 degrees F. Heat departs from the air only via circulating water that enters the jacket at 75 degrees F and leaves at 95 degrees..
A first class lever, in static equilibrium, has a 50lb resistance force and 15lb effort force. The lever's effort force is located 4 ft from the fulcrum.3. Using static equilibrium calculations, calculate the length from the fulcrum to the resista..
for a spinning solid circular disk of radius a and constant thickness the maximum stresses occur at thenbspcenter of
the acceleration of a particle is defined by the relation akt2. a knowing that v-8fts when t0 and that v 8fts when t2s
an insulated piston-cylinder device contains 100 l of air at 400 kpa and 25degc. a paddle wheel within the cylinder is
A volume of 1.8 L of neon gas (monatomic) is at a pressure of 3.4 atmospheres and a temperature of 370 K. The atomic mass of neon is 20.2 g / mol. Calculate the mass of neon gas in SI units.
A 1300 car is traveling along a straight road at 18 . Two seconds later its speed is 21. What is the magnitude of the net force acting on the car during this time?
Calculate the steady state excess electron and hole concentrations as a function of distance into the semiconductor.
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