A log floating on the water bobs up and down a total of 7 times during a 10 second interval. What is the frequency of the water waves?
7/10 Hz
I don't understand why it's 7/10Hz though...
To determine the frequency of the water waves, we need to know the number of complete cycles or oscillations of the log in a given time period. In this case, the log bobs up and down a total of 7 times in a 10-second interval.
Frequency is defined as the number of cycles per unit of time. We can calculate the frequency using the following formula:
Frequency = Number of Cycles / Time
Plugging in the given values:
Frequency = 7 / 10
Therefore, the frequency of the water waves is 0.7 cycles per second or 0.7 Hz.