Sunspots vary in number as a function of time, exhibiting an approximately 11 year cycle. Galileo made the first European observations of sunspots in 1610, and daily observations were begun in Zurich in 1749. At the present time we are well into the 23rd observed cycle. What is the frequency of the sunspot cycle? Give your answer in Hz.
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Frequency = 1/period, = 1/(11 years in seconds)
(11 x 365.25) = 4,017.75 days.
Each day has 24 hrs. each of 3,600 secs.
(24 x 3,600) = 86,400 secs.
(86,400 x 4,017.75) = 347,133,600 secs. in 11years.
(1/347,133,600) = 2.88073526e-9 Hz.
(11 x 365.25) = 4,017.75 days.
Each day has 24 hrs. each of 3,600 secs.
(24 x 3,600) = 86,400 secs.
(86,400 x 4,017.75) = 347,133,600 secs. in 11years.
(1/347,133,600) = 2.88073526e-9 Hz.