Find the final temperature and the specific work
A piston cylinder has R-134a at -20oC, 100 kPa which is compressed to 500 kPa in a reversible adiabatic process. Find the final temperature and the specific work.
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The Fermi level lies 0.520 eV above the valence band in a sample of silicon at 300k. This should be a p type material. Find the majority and minority carrier concentrations.
A hot water stream at 80 C enters a mixing chamber with a mass flow rate of 0.5 kg/s where it is mixed with a stream of cold water at 20 C.
At what point on the x-axis is the magnetic field zero if the two currents are in the same direction?
In a Rankine cycle with reheat, steam at 500C expands in a high pressure turbine until it reaches the saturated vapor state. Find a steam inlet pressure for the high pressure turbine.
A closed tank, V = 10 L, containing 5 kg of water initially at 25°C, is heated to 175°C by a heat pump that is receiving heat from the surroundings at 25°C. Assume that this process is reversible. Find the heat transfer to the water an
The distribution of the monthly costs does not follow the normal distribution. In fact, it is positively skewed. What is the probability of selecting a sample of 55 c to be at least $1,985 per month?
The valve is opened and heat is transferred so that the water comes to a uniform state with a total volume of 1.006 m3. Find the total mass of water and the total initial volume. Find the work and the heat transfer in the process.
A 1900 kg car rounds a curve of radius 70 m banked at an angle of 12 °. What is the magnitude of the friction force required for the car to travel at 86 km/h
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