Question

You stand on a pier watching water waves and see 10.9 waves pass by in a time of 28 seconds. What is the frequency of the water waves?

Answer 1

0.4Hz

Step-by-step explanation:

Given parameters:

Number of waves = 10.9waves

Time taken = 28s

Unknown:

Frequency of water waves = ?

Solution:

The frequency of a wave is the number of waves that passes through a point per unit of time.

Frequency =
`(number of waves )/(time)`

Insert parameters and solve;

Frequency =
`(10.9)/(28)` = 0.4Hz