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An engine operating on a Carnot cycle extracts 10.0 kJ of heat per cycle from a thermal reservoir at 1000.°C and rejects a smaller amount of heat to a low-temperature thermal reservoir at 10.0°C.
Determine the net change in availability of the engine per cycle of operation when the local temperature is 0.00°C.
Water at 32.0 °C is sprayed onto 0.127 kg of molten gold at 1063 °C (its melting point). The water boils away, forming steam at 100.0 °C and leaving solid gold at 1063 °C. What is the minimum mass of water that must be used
A three-phase, two-pole, 400-V (per phase), 60-Hz induction motor develops 37 kW (total) of mechanical power (Pm) at a certain speed. The rotational loss at this speed is 800 W (total). (Stray-load loss is negligible.)
A random current is described by the sample space S ={ -4 = i = 12}. A random variable X is defined by (a)Show, by a sketch, the values x into which the values of i are mapped by X. (b)What type of random variable is X
The physical head of an impoundment power plant is 100 m. When the penstock is fully closed, the pressure at the outtake end is 106 N/m2.
Find the Q-point of this transistor. Draw the ac equivalent circuit. Replace the transistor in part 1 with its small signal model (pi-model)
Explain how a matrix organization could result in the achievement of strategic fit.
The magnetic field of the earth is approximately 3 × 10-5 T. At what distance from a long straight wire carrying a steady current of 10Ais the field equal to 10 percent of the earth s field? Suggest at least two ways to help reduce the effect of el..
To reduce confusion, the base can be denoted by a subscript. Hint: See the footnote on p. 248 in Section 7.4.
The following tests are performed on a single phase transformer rated 30/6.3 KV , 10 MVA , 50 HZ i- Short circuit test with L.V side short circuited and measurement made on H.V side I = I full load , V = 2700 V , P 80 KW
What problems did Summit have with its old systems? What was the business impact of those problems?
Assume we have a toroidal coil with a rectangular cross section, with an inner radius 1 cm, an outer radius 2 cm, a height of 1 cm and 1000 turns. The coil is connected to a resistor of 500 ohms. An AC current I(t) = Io cos(wt)
A positive charge of magnitude q1 lies at the origin. Derive an expression for the incremental work done in moving a second point charge q2 through a distance dx from the starting position (x, y, z) in the direction -ax.
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