1.21 The periodicity of recurrent waveforms, such as sine waves or square waves, can be completely specified using only one of three possible parameters: radian frequency, ω, in radians per second (rad/s); (conventional) frequency, f, in hertz (Hz); or period, T, in seconds (s). As well, each of the parameters can be specified numerically in one of several ways: using letter prefixes associated with the basic units, using scientific notation, or using some combination of both. Thus, for example, a particular period may be specified as 100 ns, 0.1 µs, 10−1 µs, 105 ps, or 1 × 10−7 s. (For the definition of the various prefixes used in electronics, see Appendix J.) For each of the measures listed below, express the trio of terms in scientific notation associated with the basic unit (e.g., 10−7 s rather than 10−1µs).
(a) T = 10−4 µs
(b)f = 3 GHz
(c)ω = 6.28 × 104 rad/s
(d)T = 10−7 s
(e)f = 60 Hz
(f)ω = 100 krad/s
(g)f = 270 MHz
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