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A hypothetical A-B alloy of composition 59 wt% B-41 wt% A at some temperature is found to consist of mass fractions of 0.5 for both a and ß phases. If the composition of the ß phase is 88 wt% B-12 wt% A, what is the composition of the a phase?
A power plant operates a regenerative Rankine cycle with a reheat, one closed and one open feedwater heater and has a net power output of 1.2 x 109 Btu/hr.
saturated liquid water is heated at constant pressure in a steady-flow device until it is a saturated vapor. calculate
a simply supported beam of length 18 ft. is subjected to a trapezoidally distributed load that has a value of 3 kipft
a solar hot water heater raises the temperature of 200 liters of water from 27 to 47 degrees c. suppose a heat engine
a brass rod 100 mm long and 5 mm in diameter extends horizontally from a casting at 200 degree c. the rod is in an air
a thrust reversing system is used in jet engines to provide extra braking force to slow down an aircraft after a
there are two gears one with radius r and the other with radius 2.2r. the larger hear is subjected to an external
Define your system to be the gas in the cylinder, and calculate the work transferred from the surroundings to the system from this expansion. Note that the pressure will change as the expansion takes place.
the basic barometer can be used to measure the height of a building.if the barometric pressure reading at the top and
a driver of a car is driving around in circles with a diameter of 100 ft. the driver is traveling 20 mpg when he
a periodic torque with a maximum value of 1.0 n-m at a frequency of 5.0 rads is applied to a flywheel suspended from a
a preheater involves the use of condensing steam at 100? on the inside of a bank of tubes to heat air that enters at 1
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