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Pizza delivery. Suppose that the delivery time for a pizza delivery is Uniformly distributed between 15 to 20 minutes. Now suppose that 4 people from a dormitory independently order pizza from 4 different drivers (so the times for delivery are independent). What is the density of:
a. the minimum time until a pizza arrives?
b. the maximum time until a pizza arrives?
c. the time until the second pizza?
d. the time until the third pizza?
The angle of departure is defined as 180 degrees plus the phase angle of GH computed at the complex pole, but ignoring the contribution of that particular pole.
design an embedded system that will include four ultrasonic range finders - assume these have 10m range one 3-axis
An engineer intends to study an input signal with frequency components of 5, 6, and 10 kHz. It is desired that all other frequencies be filtered out. Design an appropriate filter, using L= 210mH and the MINIMUM bandwidth. Find C and R.
A combinational circuit is defined by the following three Boolean functions. Design the circuit with a decoder and external gates. f = x y z + xz g = x y z + xy h = x yz + xy
Charge Q is distributed uniformly throughout an insulating sphere of radius R. The magnitude of the electric filed at point R/2 from the center is what?
A 100 kVA 2000/400 V, 50 Hz single-phase transformer gave the following test results. With 2000 V applied to the primary with the secondary on open circuit: current 2 A, power 1400 W With the secondary short-circuited and 112 V applied to the primary..
f(t) = A[u(t) + u(-t/2-5)-1], where u(t) is the unit step function. Is the energy of this signal finite? Why or why not. If it exists, find the energy of this si
A long hallway has three doors, one at each end and one in the middle. A switch is located at each door to operate the incandescent lights along the hallway. Label the switches A,B AND C. design a logic circuit network to control the lights.
Assuming that at the new voltage the maximum flux density is one-third of its original value and the resistivity of the core remains unaltered, determine the necessary new thickness of the laminations.
At standard sea-level conditions, if the flow velocity at some region of the flow field exceeds about 250 mi/h, compressibility begins to have an effect in that region. Calculate the velocity of the flow in the test section of the wind tunnel abov..
The friction and windage loss is 20W, the coreloss is 35W, and the field-winding loss is 30W. Determine the power angle and the efficiency of the motor when it delivers the ratedpower at a unity power factor.
Calculate the electron and hole densities in an n-type silicon wafer (Nd=10^17 cm^-3) illuminated uniformly with 100 mW/cm^2 of red light (Eph = 1.8 eV). The absorption absorption coefficient of red light in silicon is 10^-3 cm^-1.
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