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Write a three function program. The main function must create a string array with room for 10 elements. The main function should call the second function passing it the array as the first argument and the size of the array as the second argument. The second function should get 8 names from the user and return the number of names to main. After the array is filled, main should call a third function passing it the array as the first argument and the value returned by function 2 as the second argument. The third function should display the names from the array on separate lines on the computer screen.
a) What are the FIVE requirements for synchronizing the alternator tot he grid b) What should happen once the synchronous alternator is synchronized At that very instant, what should happen if the above five conditions are met
A mote draws an average of 200mA when "awake", 0.1mA when "sleeping", and 400mA (total) when "transmitting". Transmitting data takes 2ms, and sensor acquisition takes 1ms. If the maximum size battery available is 5000mAh
A person with a receiver is 5 km away from the transmitter .What is the distance that this person must move further to detect a 3dB decrease in signal strength.
A R-C high-pass filter contains a 1 µF capacitor and a 1k resistor. Suppose a single "square" voltage pulse of 5 V for 1 ms duration is applied to the input. Carefully and neatly sketch the resulting output, including numeric values, of output volt..
A 240kW 500 Volt 1750rpm separately excited dc generator has an overall efficiency of 94%. The shunt field resistance is 60ohms, and the rated current is 5amps. The I^2R loss in the armature is 0.023pu.
a. Determine the frequency and the period of x(t) b. Given another signal, y(t)= sin(3/4(t+1)+3/8), is y(t) identical to x(t) Why c. Given a discrete time signal x[n] = cos(3/4(n+1/2)+1/4) is it periodic Why
A material is found to have a tenth-thickness of 2.3 cm for 1.25-MeV gamma rays. (a) What is the linear attenuation coefficient for this material (b) What is the half-thickness (c) What is the mean-free-path length for 1.25 MeV photons in this materi..
A dielectric sphere has radius r = 2 and the material inside the sphere has dielectric constant er2 = 4. THe region outside the sphere where r > 2 is free space and the electric field there is E1=(16r+2+8\phi). Find electric field E2 inside the sp..
What are the design implications for the location and positioning of solar cells? Explain why the use of solar cells might be more appropriate in some regions of the country.
An alarm is powered by 120 VAC, and the on/off state of the alarm is controlled by an EM relay. Design the interface between a computer output port and the EM relay. The dropout voltage is 3.5 V, and the coil current needs at least 100 mA.
A proportional control system is to be used to control the wing flaps of a jet air-plane. The wind load is expected to cause as much as 600 in .lb of torque. The system should be able to keep the flaps to within 5 of the set point.
A 92in*24in*32in, 450kg Square D motor controller is used to drive a 1600 hp,2400V,3-phase,60Hz squirrel-cage motor. a. assumeing the motor has a minimum efficiency and power factor of 96%and 90%,respectively
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