Storyline. In the Blue Ridge Mountains of Virginia, during the Great Depression, the Walton family makes its small income from its saw mill on Walton's Mountain. The story is told through the eyes of John Boy, who wants to be a novelist, goes to college, and eventually fulfills his dream.
The SI unit for period is the second. For counts per unit of time, the SI unit for frequency is hertz (Hz), named after the German physicist Heinrich Hertz; 1 Hz means that an event repeats once per second.A previous name for this unit was cycles per second (cps).or each dot, f is the frequency in hertz (Hz) â meaning the number of times per second (i.e. cycles per second) that it flashes â while T is the flashes' period in seconds (s), meaning the number of seconds per cycle. Each T and f are reciprocal.
The unit of frequency is the hertz. The period (T) of a wave is the time that it takes for one complete oscillation. The unit of period is the second. The period and frequency of a wave are linked by the following relationship, The speed (v) of a wave is the distance travelled per unit time by the wave.The unit of speed is the metre per second, m s -1.The speed, frequency and wavelength of a wave are linked by the following relationship,he period and frequency of a wave are linked by the following relationship, The speed (v) of a wave is the distance travelled per unit time by the wave. The unit of speed is the metre per second, m s -1.