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Write a mathematical expression for a vibration (vibrating string, for example) and for a wave. Familiarize yourself with the way these differential equations are solved. What is a "trial solution?" What is a boundary condition?
A system is needed to measure flow, which continuously cycles between 20 and 30 gal/min with a period of 30 sec. The required output is a voltage varying from -2.5 to +2.5 V for the cycling flow range. The sensor to be used has a transfer function..
The current through a coil having a resistance of 6 ohms and inductance of 2 H is 4 ampere. Calculate the instantaneous value of the current 50 ms after the supply is cut off.
Calculate the probability of drawing 3 10 k resistors from a box of 500 resistors, where 495 are 100 k resistors and 5 are 10 k . Use your results from part (a) and (e) to find this probability. How many ways are there to draw 3 resistors from a bo..
A three-phase substation transformer operating at 34.5kV is loaded to 24 MVA. What is the per-phase current? (assume balanced conditions)
Find the equation relating V1(t) and V2(t) for the cascaded RC network shown in figure.- obtain the transfer function for the system.
show that in the low-temperature region the electron density in an n-type material varies as ne nc12nd12e-eg-ed2kt
The failed machine will be immediately replaced with a brand new one upon the failure and the replacement time is negligible. Each machine will cost $100,000 dollars and the system is designed to run for 5 years.
Design an alarm circuit to be used in a process control system. Temperature (T), pressure (P), flow (F), and level (L) of a fluid are each monitored by separate sensor circuits that produce a high logic output signal when the following indicated p..
Write a good engineering report on high voltage power transmission line design and operation. Establish the need to calculate the electric and magnetic field profiles underneath electric power transmission lines.
An AM modulator has output xc(t) = A cos(2π300t) + B cos(2π270t) + B cos(2π330t) The carrier power is 200 W and the eciency is 30%. Determine A and B and the modulation index.
An ore car of mass 35000 kg starts from rest and rolls downhill on tracks from a mine. At the end of the tracks, 26 m lower vertically, is a horizontally situated spring with constant 3 × 105 N/m.
You must design a three axis position indicator for the latest robot arm. Using no more than two operational amplifiers, design a circuit that uses three inputs, v1, v2, and v3 to produce an output signal vo=3 v1-2 v2-5 v3.
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