So the frequency is f =10 cycles / 120 s = 0.0833 cycles/s. Answer: D. Frequency refers to the number of occurrences of a periodic event per time and is measured in cycles/second. In this case, there are 10 cycles per 2 minutes (also known as 10 cycles per 120 seconds).
From the scientific viewpoint, the Earth would have had to form about 4.54 billion years since the earliest material in the solar system is dated back to about this time period.
How long does it take for the Earth to make one revolution around the sun? It takes the Earth about 365 days to make one revolution around the sun. How long does it take the moon to make one revolution around the Earth? It takes the moon about one month to make one revolution around the Earth. What causes the change of seasons on Earth? The change of seasons on Earth is caused by the Earthâs tilt on its axis.