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Air flows through the converging-diverging nozzle. The conditions at the inlet side are at standard atmospheric conditions, while the density and the temperature at station B is 0.060 lbm/ft3 and 30.5 degree Fahrenheit. Also, the density at station C is 0.050 lbm/ft3, with the velocity at station A recorded to be at 380 ft/s. Determine the following, assuming ideal gas conditions and isentropic process:
a) Mass Flow of air
b) The velocity of stations B and C
c) The pressure at station B and C
d) The changes in internal energy, enthalpy, kinetic energy and potential energies.
Draw a diagram of the converging-diverging nozzle, where the diameter at stationA=5 in, B=2 in, and the diameter at station C=6 in.
Electrons in an x-ray tube are accelerated through 100 kV and directed toward a target to produce x-rays. Determine the power of the electron beam in this tube if it has a current of 12.0 mA
Two capacitors are connected to a battery. The battery voltage is V = 90 V, and the capacitances are C1 = 2.00 ?F and C2 = 4.00 ?F. Determine the total energy stored by the two capacitors
A resistor is in the shape of a cube, with each side of resistance R . Find the equivalent resistance between any two of its adjacent corners.
"Discuss critically the extent to which you accept the concept of corporate social responsibility"
Consider a uniform electric field E = 2.3 kN/C x. What is the flux of this field through a square of side 11 cm if the normal to its plane makes a 36° angle with the x axis
A 2.9kg block slides with a speed of 1.3m/s on a frictionless horizontal surface until it encounters a spring. What initial speed should the block have to compress the spring by 1.2 cm
A sprinter runs 100.0 m. If he travels at constant acceleration of 1.95 m/s2 for the first 6.00 s, and then at constant velocity for the remaining time, What was his average speed
An airplane sends out a radar pulse of frequency4.5x1010Hz. The signal returns to the plane 0.6 ms later. How far is the object that reflected the wave
A glass optical fiber (n= 1.50) is submerged inwater(n=1.33). What is the critical angle for light to stay inside the fiber
A boat has a mass of 4790 kg. Its engines generate a drive force of 4350 N due west, while the wind exerts a force of 940 N due east, What is the boat's acceleration, with correct sign
the charging circuit for the flash system of a camera uses a 11010-6 f capacitor that is charged from a 240 v power
A cord is wrapped around the rim of a solid uniform wheel 0.280 m in radius and of mass 9.60 kg. Find the magnitude of the force that the axle exerts on the wheel
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