Period = (4 seconds) / (2 waves) = 2 seconds per wave Frequency = (2 waves) / (4 seconds) = 0.5 Hz.
6 waves/2 seconds = 3 waves per second = 3 Hz.
5 wavs in 2 seconds = 2.5 waves per second = 2.5 Hz
0.5 hertz
Frequency: 20 waves per 2 seconds = 10 waves per second = 10 Hz.Wavelength: Double the distance between crest and adjacent trough = 3 meters.Speed: (frequency) x (wavelength) = 10 x 3 = 30 meters per second.
The speed of a wave = (wavelength) times (frequency) = (10) x (1/2) = 5 meters per second.
16 wave crests in 8 seconds is the same as 2 per second. 2 is the frequency - 2 Hertz, to be precise.16 wave crests in 8 seconds is the same as 2 per second. 2 is the frequency - 2 Hertz, to be precise.16 wave crests in 8 seconds is the same as 2 per second. 2 is the frequency - 2 Hertz, to be precise.16 wave crests in 8 seconds is the same as 2 per second. 2 is the frequency - 2 Hertz, to be precise.
The frequency is 6 per 2 seconds = 3 Hz. The period is the reciprocal of the frequency = 1/3 second.
2
Wavelength x frequency = velocity, so if the frequency is the same for two waves moving at different velocities, the faster wave must have a longer wavelength.
2. overtones
23/2 seconds = 11.5 per second = 11.5 Hz