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The first five terms in the Fourier series of a periodic waveform are
(a) Find the period and fundamental frequency in rad/s and Hz. Identify the harmonics present in the first five terms.
(b) Use MATLAB to plot two periods of v(t).
(c) Identify the symmetry features of the waveform.
(d) Write the first five terms of the Fourier series for the waveform v(-t).
A process in a plant is to be revised such that the air flow rate through a system will increase from 8000 cfm to 10,000 cfm. The existing fan runs at 1600rpm and provides 6.0 in. H2O SP.
The flowrate in a rectangular channel is 20 m3/s. The width of the channel is 4 m and the depth of flow is 5 m. If there is an increase in the channel bottom elevation (?z) with NO energy loss, what is the maximum value of ?z possible with no increas..
Using the data provided, determine the volume fraction of fibers that will be required. What will be the tensile strength of this composite? Assume that the matrix stress at fiber failure is 50 MPa (7250 psi)
Let X be a random variable defined by the density function f(x) = 3X^2 0
A layer of clay 5 m thick overlies a deposit of sand 5 m thick, which is underlain by rock. The water table in the sand is sub- artesian with a level at 2 m below ground level
A horizontal pre-stressing force of 750kn is applied to a rectangular concrete beam to be used as a structural member of a traffic bridge. The beam has a depth of 500mm and a width of 250mm. The force is applied at a distance of 80mm below the sec..
How many particles would be present in a cubic meter of aerosol at the concentration of the U.S. PM-10 standard or 50 micrograms/cubic meter if the particles are .1 micrometer in diameter.
At what depth will water flow in a 10 m wide rectangular channel, if n=0.01, S=0.0015 and Q=9m^3/s
A paddle wheel, inserted inserted into the volume, does 720 KJ of work on the air. If the volume is 2 cubic meters, calculate the entropy increase assuming constant specific heats.
A cylinder with a moveable piston holds .20 lb of hydrogen initially in a volume of 1 cu ft at a tem-perature of 1300 F. Then the volume is expanded to 2.5 cu ft while the gas pressure remains constant.
The concrete slab shown in Figure 1 is subjected to the ultimate uniformly distributed load of q(kN/m2 ). The positive moments per unit length of the slab in X and Y directions perpendicular to the reinforcement are assumed to be 20kNm/m and 12kNm..
List the series of steps involved in converting rural land into development. You may refer to an example of local conditions in your reference jurisdiction or you may use a description of such steps that you find from other sources, but do not limit ..
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