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The steady state solution for a dc source on a loaded line does not require the use of the multiple reflections method. Explain how the steady state solution is obtained.
When is the energy crossing the boundaries of a closed system heat and when is it work?
A small five-cylinder CI automobile engine operates with a variable valve timing control system without a camshaft. At operational speed of 3500rpm the intake valve opens 32deg bTDC and closes 57deg aBDC. The exhaust valve opens 52deg bBDC and closes..
1. Acetylene (C2H2) enters a torch and burns completely with 110% of theoretical air entering at 748F, 1 atm, 50% relative humidity. Obtain the balanced reaction equation, and determine the dew point temperature of the products, in 8F, at 1 atm...
air expands from 100kpa 40 degrees c with volume .75 m3 to 15kpa in a polytropic process with polytropic exponent n.
1. Assume a vertical pipe and include gravity in the list of variables in Prob. 6.12 and ?nd an expression for the pressure drop. 2. The drag force on a sphere depends on the sphere's diameter and velocity, the ?uid's viscosity and density, and g..
a new product tracking machine costs 130000 and will have a 15000 salvage value at the end of 10 years. annual repair
A pinion with 24 teeth has a tooth thickness of 0.2550 in. at a cutting pitch radius of 1.500 in. and a pressure angle of 20°. A gear having 40 teeth has a tooth thickness of 0.2300 in. at a cutting pitch radius of 2.500 in. and a pressure angle o..
A 25-kg block of copper at at initial temperature of 150 C equilibrates with 0.79 kg of liquid water at an initial temperature of 20 C in an insulated tank. If the average specific heat of copper can be taken to be 0.395 kJ/kg.K, determine the final ..
calculate the work necessary to compress air in an isolated cylinder piston with an intial volume of 6.0ft3 and a final
A coal-fired power plant produces and sells 10,000 MW electricity while operating at 40 % thermal efficiency. The sale price of electric power is $0.04 per kWh. How much power does it reject to the atmosphere? How much power (in the form of heat rate..
find the thermal efficiency of an ideal reheat rankine cycle of a steam power plant. find the pressure at which
to a man walking with a speed of 2 ms the rain appears to fall vertically. if the velocity of rain is 4 ms calculate
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