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The second law efficiency of heating a liquid in a closed container is evaluated in Example. Using the results obtained there, plot the ratio of second law availability efficiency to the first law energy efficiency (ε/ηT) vs. ΔT for a variety of T and T0 values. Comment on the general trends of these curves.
Example:
Determine the first and second law efficiencies for heating a liquid from temperature T to temperature T + ΔT in a closed, uninsulated tank. The temperature change ΔT is due to an external heat transfer Qin, and since the tank is not insulated, there is also a heat loss to the local environment, Qloss. The ground state temperature is T0.
Some AC voltmeters provide dBm readings which are based on a 600 Ω reference resistance in addition to the l mW reference power. If an AC voltmeter reads 16 on its dBm scale, what is the rms value of the voltage that corresponds to this reading?
Calculate the electrostatic energy that is stored in the structure if the intermediate space is filled with a dielectric whose relative dielectric constant is 10 and a voltage is applied between the conductors creating an electric field.
Using the results of your program, Calculate the entropy of a source that outputs the 26 English characters with the probabilities you calculated.
A. What is the reflection coefficient of the load B. If a quarter-wave transformer is inserted between the transmission line and the load, what shall be the characteristic impedance Z0 of this quarter-wave transformer in order to realize an impeda..
Write a program to determine how many from your data set called MYDATA, which is a set of unsigned single-byte numbers, are odd numbers. Save the result in TOTODD at address 0x10 in the data memory.
Explain how audio sound is recorded onto, stored on and played back front a compact disc (CD).- Explain how audio sound is recorded onto, stored on and played back from a vinyl record.
Design a current divider that will provide a 1/3-2/3 current splitting ratio. Use resistance in kilo ohm range. Redesign the current divider so that the resistors are less than 100 ohms but maintain the same 1/3-2/3 splitting ratio.
consider a running motor with Z = 6 + j7 ohm A) calculate the line crurrent if the motor is operated at 120 VAC RMS B) calculate the required paralell capacitor value to reduce the line current to a minimum
An opera glass uses an objective and eyepiece with focal lengths of +12 cm and -4.0, respectively. Determine the length (lens separation) of the instrument and its magnifying power for a viewer whose eyes are focused (a) for infinity and (b) for a..
A 1 F capacitor is being charged through a 100 Ohm resistor. How long will it approximately take for the capacitor to reach about 63% of its final charge
Find the electric flux density field produced by a uniformly charged infinite cylinder of radius ‘a' using Gauss's law.
write a VHDL module to implement a circuit that can generate a clock signal whose time period is a multiple of the input clock. A control signal F determines the multiplying factor. If F=0 the output signal has a time period twice that of the inpu..
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