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Model lightning strikes to a power line during a thunderstorm as a Poisson impulse process. Suppose the number of lightning strikes in time interval has a mean rate of arrival given by , which is one strike per 3 minutes.
(a) What is the expected number of lightning strikes in 1 minute? in 10 minutes?
(b) What is the average time between lightning strikes?
Hope invested $11,400 in a mutual fund at a time when the price per share was $47.00. The fund has a load fee of $416. As a result, she purchased 234 shares in the mutual fund
Calculate the IL, IR, in polar notation, for the following circuit.
A M-bit thermometer code for the number k consists of k 1's in the least significant bit positions and M-k 0's in the more significant bit positions. A binary-to-thermometer code converter has N inputs and 2^N-1 outputs.
A three-phase, 60-Hz transmission line is 250 mi long. The voltage at the sending end is 220 kV. The parameters of the line arc R = 0.2 Ω/mi, X = 0 .8 Ω/mi, and Y = 5.3, μS/mi. Find the sending- end current when there is no load on the line.
three coins are tossed. Describe the following events: A. at least two heads occur. B. At most one head occurs. C. Exactly two heads occur. D. No heads occur Find the probability for the occurence of each event.
Suppose a 15-uF capacitor is charged to 500 V. Determine the stored charge and energy. If this capacitor is discharged to 0 V in a time interval of 4 ?s, find the average power delivered by the capacitor during the discharge
Calculate the series and parallel resonant frequencies of the crystal. - The magnitude and phase of the overall electrical impedance of the crystal at the above frequencies.
A 1100/400 V, 50 Hz single phase transformer has 100 turns on the secondary winding. Calculate the number of turns on its primary.
A block of copper has a volume of 5.5x10-3 m3 and a mass of 50.0 kg. The specific heat capacity of copper is 385 J/(kgC0). The melting point of copper is 1085 0C. The latent heat of fusion is Lf = 2.05x105 J/kg. The coefficient of volume thermal e..
What happens when you have a non-zener and zener diode in series opposing each other eg non-zener is forward bias and the zener is reverse bias assuming both are ideal (infinite slopes when they are operating).
Using the metric units, determine the length of a copper wire that has a resistance of 0.2 Ω and a diameter of 1/10 in.
Consider the circuit shown in Figure. Prior to t = 0, v1 = 100V, and v2 = 0. Immediately after the switch is closed, what is the value of the current [i.e., what is the value of i(0+)]?
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