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A coil spring has a spring constant of 5 lb/in. and a rest length of 3 in. In a machine, the spring is stretched to 4.5 in. and is used to exert a constant force on a lever. How much force does the spring exert?
Assuming that the interference emanates from the center of the cell, calculate the fraction fp defined as the ratio of the interference to the received power from a user at the edge of the cell. You can assume that all uplink transmissions are at..
Draw a block diagrams showing enamel, address, and data lines for each of the following: 2732, 2764, 27128, and 27256. Draw a schematic for a 6k x 8-bit memory array using a minimum number of 2732's.
What is the minimum of bits in its instruction codeword How would your answer change if you also knew that 30% of the possible permutations of instruction word bits are not used
Use block diagrams to illustrate the following systems and make appropriate labeling: (a) y(t) = x(t) ∗ [h1(t) ∗ h2(t)] + h3(t);
A thermometer, initially at a temperature of 75 degrees Fahrenheit is suddenly immersed into a tank of water with a temperature of 180 degrees Fahrenheit. The time constant of the thermometer is 4 s.
A 660 MW, 25 kV, 50 Hz, 2-pole, synchronous generator havinga synchronous reactance of j1.2Ω per phase, delivers rated output at0.85 power factor lagging. (Assume the windingresistance to be negligible).
(1) In a lab experiment on parallel Resonance circuit with switch closed, What is the phase relationship between Ic and IL at Is minimum (2) Why is the source current , Is, minimum at a given frequency
determine the number of complex multiplications.
Compare the field at the center of a Helmholtz coil pair and at the center of a solenoid, if both use the same total length of wire and carry the same current.Take the solenoid length equal to the spacing between the Helmholtz coils
The measured current, voltage and power factor of a premium-efficient, three-phase, 125-hp air compressor motor are shown in the table below. Assume motor is 95.3% efficient at all loads. Loaded Unloaded Current (Amps) 127 63 Voltage (Volts) 476 47..
The initial voltage across the capacitor shown in Figure is vC(0+) = 10V. Find an expression for the voltage across the capacitor as a function of time. Also, determine the time t0 at which the voltage crosses zero.
If the energy stored in the fully charged battery is used to lift the battery with 100-percent efficiency, what height is attained. Assume that the acceleration due to gravity is 9.8 m/s2 and us constant with height.
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