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Use the concept of phasor to combine each of the following sinusoidal functions into a single trigonometric expression:
(a) y = 50cos(500t + 60) + 100cos( 500t - 30)
(b) y = 200 cos( 377t + 60) -100sin( 377t + 150)
How does the speed of an induction generator relate to synchronous speed Explain. How is power factor could be controlled if is is a squirrel cage machine? How about a wound rotor machine
I)Design a circuit that gives you the following relation between input and output Vout = 2.17Vin + 5 Here are the constraints you need to work with: 1) Only one power supply that gives ±12V is available 2) Available op-amps run on ±12V
1) What type of chemical reaction is taking place 2) How many liters of 0.100 M HCl would be required to react completely with 5.00 grams of calcium hydroxide 3) If I combined 15.0 grams of calcium hydroxide with 75.0 mL of 0.500 M HC..
What is the frequency of the rotor currents? What is the angular velocity of the stator field with respect to the stator? With respect to the rotor?
Describe the functionality of the above DFSM using transition tables. Consider that the system starts always from state B. What happens if the system will start from another state - say A?
How does this cost compare with the current cost of new coal figured generation at 3.5¢/kWh? Write a brief (400 words or less) argument on why Colorado should or should not shut down its coal power plants and replace them with wind farms?
Assume that we will use a double-precision number for non-integer numbers (if you recall, this means a binary "scientific notation" with a sign bit, 11 exponent bits using an excess-1024 representation, and a 53-bit mantissa of the form 1.--52 bits-..
The ATSC broadcast television system used in the US transmits video signals at an average rate of 18.34 Mbps and employs 8-VSB modulation.
The signal transmitted by a Base Station has a power of 1 mW at a distance of 1 m from the transmitter. Measurements have shown that the propagation exponent for the path loss is n=3 up to a distance of 1 km and n=4 beyond that.
the total amount of electricity that could potentially be generated from wind in the U S has been estimated at 10.8*10^9 Mw-hr annually , if one tenth of this potential is developed, estimate the number of 2 Mw windmills
Steel surfaces can be hardened by carburization. During one such treatment at 1000°C, there is a drop in carbon concentration from 5 to 4 at% carbon between 1 and 2 mm from the surface of the steel. Estimate the flux of carbon atoms into the steel
A transmission line with no loss, with Z0= 60 ohms, is operated at 60MHz. The velocity on the line is c. The line is soldered to a ground connection at z=0. Find the input impedance into this line at z= -1.25 meters
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