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An insulated cylinder closed at one end by a frictionless piston contains 20g of hydrogen gas at 30 degrees Celsius. This is heated to 40 degrees Celsius with the pressure kept constant at 1 bar and the volume increases by 7*10^-4 m^3. (The specific heat of H2 at constant pressure is 1.4*10^4 JKg^-1 K^-1).
a) What is the work done by the gas?
b) What is the change in internal energy of the system?
A student attempts to measure his own ECG on an oscilloscope having a differential input. For Figure 6.11, Zin ¼ 1MV, Z1 ¼ 20 kV, Z2 ¼ 10 kV, ZG ¼ 30 kV, and idb ¼ 0:5mA. Calculate the power-line interference the student observes.
A circular coil of 200 turns of radius a=60mm, total resistance R=2 ohm, and no self inductance is rotated about a vertical diameter with uniform angular velocity =200 rad/s in a horizontal magnetic flux B of 0.25 Tesla.
A CT signal x(t) can be depicted as follow. It is a periodic function with T0 = 1 micro sec, and amplitude A = 1. The second signal y(t) is a sinusoid function with the fundamental frequency of 900 MHz, i.e., y(t) = cos(2*pi*fc*t)
A 3-phase synchronous generator rated at 75 MVA,13.8 kV (L-L) is connected to a power system that has a Theveninequivalent of j0.23 per unit at 1.0 per unit voltage. The synchronous reactance of the generator is j1.35 per unit.
Sketch the temperature distribution for case 1 on T - x coordinates. Describe the key features of this distribution. Identify the location of the maximum temperature in the wall and calculate this temperature.
An airplane has a mass of 3*10^4 kg and takes off under the influence of a constant net force of 35 000 N. What is the net force that acts on the plane's 80-kg pilot, assuming that he has the same acceleration as the plane
What will be the power factor when the resistor voltage is 9 V at an angle of 30 degrees, and the capacitor voltage is 3 V at an angle of - 60 degrees in a RC series circuit. Also, what will be the power factor when the inductor voltage is 9 V.
describe the characteristics of the series rc filter circuit with the output across the resistive component.
Which would you expect to have a bigger effect on the power consumption of a CMOS circuit, a 5% increase in power-supply voltage or a 5% increase in internal and load capacitance
Find the change in currents due to change of voltage by (a) 5mv, (b) -10mv, (c) 15mv using small signal model and exponential model of diode with n= 1 and biased at 2mA.
What, exactly, is necessary to establish electrical continuity between two wires. If want to have an electric current flow out of one wire and into another, what must be done with those two wires to make that flow path complete.
Your will simulate 10lottery drawings. Store those data to a 3 10 array. The rowsindicate the three balls in a lottery drawing. The columns indicatethe 10 times drawings.
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