Given data
The number of times wing is flapped by the hummingbird is N = 639
The duration of the flipping wing is T = 48 seconds
The expression for the frequency of the wingbeats is given as:
[tex]f=\frac{N}{T}[/tex]Substitute the value in the above equation.
[tex]\begin{gathered} f=\frac{639}{48} \\ f=13.3125\text{ Hz} \end{gathered}[/tex]Thus, the frequency of wingbeats is 13.3125 Hz.
