Question

A physics student sitting on the beach notices that a wave hits the beach every 10 seconds, and the waves seem to be about 20 m apart. What is the speed of these waves? V = frequency x wavelength

Answer 1

Answer:

2m/s

Explanation:

Given: time-period = 10s

            wavelength = 20

time-period = 1/frequency

frequency = 1/time-period

frequency = 1/10

v = frequency x wavelength

  = 1/10 x 20

  2

v = 2m/s