The velocity of any wave can be calculated from its frequency and wavelength. How fast (in meters per second) is a wave moving if its six waves go by in a second and its wavelength is two meters?
A. 1/3
B. 3
C. 8
D. 12

Respuesta :

use the equation : V = wavelength x frequency 
                             V = 2 x 6 = 12 m/s
hope that helps