Question

A group of swimmers is resting in the sun on an off-shore raft. They estimate that a distance of 3 meters separate each trough of a wave from the crest of the wave on the surface of the lake. They time the crests that pass by the raft and count 14 in 20 seconds. Determine the following about these waves: 1) wavelength, 2) period, 3) frequency, and 4) velocity.

Answer 1

Step-by-step explanation:

Wavelength = 6 m

Frequency = 14/ 20 s= .7 Hz

Period = 1/f = 1.4 s

Velocity = wavelength * frequency = 4.2 m/s