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(a) Design a low-pass OP AMP circuit to pass only the fundamental and the next nonzero harmonic of a 20π ms square wave. The gain of the OP AMP should be +5.
(b) Find the first four nonzero terms in the Fourier series of the output of your filter.
(c) Validate your design using Multisim. The OP AMP's VCC = ± 15 V.
A groundwater has an alkalinity of 200 mg/L as CaCO3.Assume that all of the alkalinity is bicarbonate. Express thisbicarbonate concentration in units of meq/L, moles/L, and mg/L.
A trapezoidal channel having bottom width of 8 m and side slopes of 1 : 1, carries a discharge of 80 m^3/s. Find the conjugate depth to an initial flow depth of 0.75 m before the jump. Also determine the energy loss in the hydraulic jump.
A 1: 1½ : 3 mix (by mass) has a water/cement ratio of 0.4 and a cement content of (400) kg/m3. The temperatures of the ingredients are as follows
The outside diameter of the coil should be no more than 1.250 in. Specify the diameter of a rod on which to mount the spring.
Four forces act on a small airplane in flight: its weight (24kN), the thrust provided by the engine (10 kN), the lift providedby the wings (23 kN), and the drag resulting from its motionthrough the air (3 kN).
For the following waste and river characteristics just upstream from the outfall, find the minimum downstream DO that could be expected:
In trigonometric leveling from point A to point B, the slope distance and the zenith angle measured in A were 2504.897 m and 85o08’54”. At B, these measurements were 2504.891 m and 94o52’10” respectively
Past experience indicates that the time for high school seniors to complete a standardized test is normal random variable with a mean of 35 minutes.
a wheel tractor scraper weighing 100 tons is being operated on a haul road which is now packed. this tractor is traveling fully loaded up a 6% slope to the dump site which is 0.5 miles away. the return trip is level and is also 0.5 miles away.
How does the engineering classification of soils differ from he engineering classification of rocks
A diver is planning to salvage a Spanish galleon located in 200 feet of water. He plans to use a diving suit that will be supplied with air from a hose (assume this to be amply sized) connected to a compressor that he will locate in his boat on the s..
an open rectangular channel is 50 feet wide flowing at a depth of 5 feet and is carrying 1000 cubic feet per second.
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