A certain band-limited periodic voltage has only three harmonics in its Fourier series representation. The harmonics have the following rms values: fundamental 40 V, third harmonic 20 V, fifth harmonic 10 V.
(a) If the voltage is applied across a 5-? resistor, find the average power dissipated by the resistor.
(b) If a dc component is added to the periodic voltage and the measured power dissipated increases by 5 percent, determine the value of the dc component added.
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a. polymeric b. thermoplastic c. elastomeric d. hydrostatic
Name and discuss in some detail three process/ machine considerations when injection molding a whisker-reinforced part. Think about the fiber length, the small clearances between the nozzle and part, flow through the part, type of resin (i.e. thermoplastic vs. thermoset), Screw speed, etc are some of the considerations that could be discussed somewhere in their answer. Define symmetry and balance
as they relate to composite lay-ups, and give examples of having one but not both qualities. What will happen to the part if both are not met? What will be an ideal response?
A genuinely American literature received a strong boost from the
A. wave of nationalism that followed the War of 1812. B. writing of Charles Wilson Peale. C. religious writings of the Second Great Awakening. D. federal support for the arts. E. receding influence of romanticism on American shores.
According to the text, vinyl siding, PVC plumbing pipe, and steel studs are materials that can easily be cut with which of the following tools?
A) Sawzall B) Jig saw C) Rotary saw D) Circular saw