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1. Oil is supplied at the center of two long plates. The volumetric flow rate per unit length is Q and the plates remain a constant distance, b, apart. Determine the vertical force per unit length as a function of the Q, μ, L, and b.
2. Aviscous film drains uniformly down the side of a vertical rod of radius R. At some distance down the rod, the film approaches a terminal or fully developed flow such that the film thickness, h, is constant and vz = f(r). Neglecting the shear resistance due to the atmosphere, determine the velocity distribution in the film.
A three phase synchronous motor has the synchronous reactance of 2.1 Ohm and draws 250 A with a lagging power factor for an excitation voltage of 1327 -15 degree per phase. Find the terminal voltage of the motor and power factor of the motor.
The design for a 1/8 -hp, two-pole, 115-V universal motor gives the effective resistances of the armature and series field as 4 % and 6 %, respectively. The output torque is 0.17 N-m when the motor is drawing rated current of 1.5 A (rms) at a powe..
A signal is bandlimited to 20kHz. The band between 16 and 20 kHz is corrupted by noise such that the information is unrecoverable. Determine the analog lowpass filter maximum frequency to eliminate corrupted noise.
purchase an inductor coil for a resonance circuit resonating at 1500 kHz; the operating bandwidth is 10 kHz. What is the quality factor Q of the coil
Design a sequencer with an enabler with 3 outputs that when enabled follows a successive clock sequence of 000,000,011,011,110,110,010,011 when the last step is reached the sequence returns to the beginning.
Design an Aritmentic unit that meets the following specifications. Two 32-bit operands as inputs 2-bit command as input to specify four operations ADD, SUB, MUL, DIV
1- A one-meter long wire antenna is center fed by a source with frequency 30 MHz : i- find the wavelength and the current distribution along the antenna . ii- find the radiation resistance. iii- if the source is now replaced by another with frequency..
Given: Si is doped with boron atoms; concentration of boron atoms is 1014 cm-3. Find: carrier concentration in Si at T = 300 K. (Hint: use Principle of Space Charge Neutrality) Find: Ei - position of Fermi level in intrinsic Si at T..
a. A WLAN uses the 1-Mbps IEEE 802.11 infrared standard and the 16-PPM modulation scheme. Compute the period of transmission (time between bits). b. What is the average time between pulses (1 values) and the corresponding average rate of pulse tran..
We have a continuous time-domain sinewave signal x(t) = sin(500xt +π / 5). We sample the time-domain signal with sampling period T = 0.2ms and we get the sequence 4n] . If we start sampling at time t = 0 , we will obtain samples at
Design a series resonant circuit to have a bandwidth of 400 Hz using a coil with a Ql of 20 and a resistance of 2. Find the values of L and C and the cutoff frequencies.
For the foregoing heat rate and a copper heater of thermal conductivity k h = 400 W/m · K, what is the required volumetric heat generation within the heater and its corresponding centerline temperature?
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