Wheel cylinders are being discussed. Technician A says that if a wheel cylinder is not leaking fluid it is OK. Technician B says that wheel cylinders requires further inspection. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
B
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?A rolling head prybar is handy for aligning what part?
What will be an ideal response?
Approximately two-thirds of the global sales for dry product type petfoods in 2002 were for dog and cat foods
A. True B. False
Liability insurance is recommended for business owners as well as for those raising dogs and cats as a hobby
A. True B. False
A periodic rectangular pulse train f(t) shown below has amplitude A = 1 V, pulse width ? = (1/6) ms, and period T0 = 1 ms. The pulse is centered at t = 0.
(a) Find the fundamental frequency f0 of this signal.
(b) Find the duty cycle d of this signal.
(c) Find the expression of the Fourier coefficients a0, an, bn, Fn. (d) Find the numerical values of a0, and an for 1 ? n ? 6.
(e) Plot the one-sided magnitude spectrum for 0 ? f ? 6f0.
(f) Plot the one-sided phase spectrum for 0 ? f ? 6f0.
(g) Find the expression of approximation ˆ( ) f t consisting of the dc component, the fundamental component, the second harmonic component, and the third harmonic component of its trigonometric Fourier series (sum of cosines). The coefficients must be numbers.
