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Using the laws for the addition of vectors and equation (), show that in the absence of gravity,
(a) The fluid acceleration, pressure force, and viscous force all lie in the same plane;
(b) In the absence of viscous forces the fluid accelerates in the direction of decreasing pressure;
(c) A static fluid will always start to move in the direction of decreasing pressure.
A synchronous generator rated 1350 MVA at 0.9 pf, 22.5-kV, Xs=11.6% is connected to a power system through a 1500 MVA, 7.9% 24-kV/230-kV generator step up transformer. The power is generated into a 230-kV system.
A 20-V-rms 60 Hz ac source isin series with an ideal diode and a 100 ohm resistance. Determine the peak current and peak inverse voltage(PIV) for the diode.
How many 100 mA current sources must be connected in parallel to produce a total current output of 300 mA? Draw a schematic showing the sources connected.
a)apply gauss's law to find the total flux leaving the closed surface of the cube. b)evaluate - *D at v the center of the cube. c)estimate the total charge enclosed within the cube.
Every 64 cycles, the circuit outputs the average ofthe past 64 input V values, then in the next cycle begins a new calculation (in other words, its behavior repeats). During the cycles when the circuit is not outputting the average, itshould outpu..
An ideal one sided silicon n+p junction has uniform doping on both sides of the abrupt junction. The doping relation is Nd=50Na. the built in potential barrier is Vbi=0.752 V. the maximum electric field in the junction is Emax=1.14*10^5 V/cm for a..
Estimate the propagation delays of implementations (1), (2) and (3) using typical propagation delay data in the timing specifications of the logical gates of CD4000 family. Take the average propagation delay for 1-0 and 0-1 output transitions.
Group and phase velocity in uniaxial crystals: a. Derive an expression for the group velocity of the extraordinary wave in a uniaxial crystal as a function of the polar angle of the propagation vector.
Consider the battery charging circuit shown in Figure. The ac source has a peak value of 24 V and a frequency of 60 Hz. The resistance is 2 Ω, the diode is ideal, and VB = 12 V. Determine the average current.
The no-load test of a single-phase induction motor is made by running the motor without load at rated voltage and rated frequency. Derive the equivalent circuit of a single-phase induction motor for the no-load test.
A crystal with a simple cubic lattice and a monoatomic basis has an atomic radius of 2.5 angstrom and an atomic weight of 5.42. Calculate its density assuming that the atoms touch each other.
Calculate the raial ion transport flux n_i*v_i_r in a cylindrical hydrogen plasma which has an axial curent of 1MA unifmorly distributed over a plasma of radius a = 1 m, has a uniform temperature of Ti = Te = 2 keV, and has an axial magnetic field..
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