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1. Determine the irreversibility produced as 10.0 kg of liquid water at 10.0°C is adiabatically mixed with 20.0 kg of liquid water at 80.0°C. The specific heat of the water is 4.20 kJ/kg·K, and the local environment is at 0.101 MPa and 20.0°C.
2. Here is the classical coffee and cream problem. Which of the following processes produces less irreversibility?
a. Mixing cream with hot coffee and then letting the mixture cool to the drinking temperature.
b. Letting the coffee cool to a temperature such that, when the cream is added, the mixture will be at the drinking temperature. Do not ignore the cooling heat transfer irreversibility.
Given that the capacitance of the plates is 4 nF, sketch the current flowing through the plates.
Consider a hollow cylinder with a length L along the z-axis and a radius R and a charge -Q, containing a wire also of length L and charge Q running co-axially to the cylinder at its center.
Show C code implementations for these two functions.
Discuss the properties and practical applications of the following electrical engineering materials : (a)Carbon and graphite (b) copper
An equilateral glass prism w/ an index 1.42 has a beam of light incident on one face at an angle of θi to the normal. Determine the angle at which it emerges from an adjacent face of the prism.
a closed conical tank with diameter of 1.50 and height of 3.00 m, sitting on its circular base has 1.00m depth of water. Suppose the tank is upside down and is made to stand vertically that way using some device.
A 138-kV, three-phase short transmission line has a per-phase impedance of (2+j4) ohms. If the line supplies a 25-MW load at 0.8 power factor lagging, calculate (a) the efficiency and (b) the sending-end voltage and power factor.
The stator frequency of an induction machine is 50 Hz and the rotor circuit frequency is 5 Hz. What is the rotating speed in rpm for a 4-pole induction machine
If there is two AC currents in a circuit and both have different angular velocity, is there a way to analyze the circuit by finding an equivalent angular velocity between the two currents and superposition can't be used
Determine the mode words for each 8255 configuration: (a) Mode 0, Ain, Bout, Cin (b) Mode 1, Aout, Bin
For a BJT common Emitter Amplifier, the AC base voltage = 1,2Vrms, Av=50, Bdc=150, Bac=200, alpha dc =0.98 and an RE of 500 ohm. What is the AC P-P voltage
Include an absorbing boundary at the far end of the waveguide. Excite the waveguide with an r source at the edge of the waveguide (near the PEC boundary).
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