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1. Gaseous Propane at 25 degrees C is burned with moist air at 400K in a steady state, steady flow process. The combustion process is adiabatic, and the exiting temperature is measured to 1200K. A sample of the products is tested and found to have a dew-point temperature of 70 degrees C. Determine the percentage of theoretical air used and the relative humidity of this air. Assume the combustion is complete and that the pressure is 100 KPa throughout the process.
2. A mixture of 80% ethane and 20% methane on a mole basis is throttled from 10MPa, 65 degrees C, to 100KPa and is fed to a combustion chamber where it undergoes complete combustion with air, which enters at 100KPa, 600K. The amount of air is such that the products of combustion exit at 100KPa, 1200K. Assuming that the combustion process is adiabatic and that all components behave as ideal gases except the fuel mixture, which behaves according to the generalized tables or charts, with pseudocritical constants, determine:
a) the percentage of theoretical air used in the process
b) the dew-point temperature of the products
High-speed photos of a 200%u03BCg flea jumping vertically show that the jump lasts 1.5ms, What average force does the ground exert on the flea during its jump
Two point charges are on the y-axis. A 6.0 µC charge is located at y = 1.50 cm, and a -2.16 µC charge is located at y = -1.60 cm. Find the total electric potential at the origin.
initially unpolarized light is sent into a system of three polarizing sheets whose polarizing directions make angles of ?1 = ?2 = ?3 = 51° with the direction of the y axis, What percentage of the initial intensity is transmitted by the system
Assume that the masses of the chains, pulleys, and ropes are negligible. Determine the tension in the rope when the crate is being lifted with constant speed.
If two electrons are each 2.10*1010m from a proton, as shown in the figure, find the magnitude and of the net electrical force they will exert on the proton.(Figure 1)
A bulk modulus of aluminum is 7.1 x 1010 N/m2. If the density of aluminum is 2.7 x 103 kg/m3, then compute what is the speed of sound in aluminum
A 1.562 kg object oscillates with simple harmonic motion on a string with a force constant of k=1500.0 n/m. If the maximum speed is 7.498 cm/s, what is the total mechanical energy and what is the amplitude of the oscillation?
The Royal Gorge bridge over the Arkansas River is 310 m above the river. A 61-kg bungee jumper has an elastic cord with an unstressed length of 60 m attached to her feet. Assume that, Find the maximum speed of the jumper
Calculate the distance from the Earth for a geosynchronous satellite orbit. Express the result in units of the radius of the Earth.
A physics professor is pushed up a ramp inclined upward at an angle 31.0 above the horizontal as he sits in his desk chair that slides on frictionless rollers. The combined mass of the professor and chair is 90.0 . He is pushed a distance 2.85along t..
The critical angle for light traveling in a particular optical medium and incident on an interface with air is 46.7o. Calculate the refractive index of this medium
A 2.5 cm-long horizontal wire segment has mass 0.15 g and carries a current sufficiently large that it levitates when the segment is in a region of B field upward with magnitude 1.5 T
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