Final answer:
To find the wavelength, divide the speed of the wave (0.800 m/s) by its frequency (2.00 Hz), resulting in a wavelength of 0.400 meters.
Step-by-step explanation:
To calculate the wavelength of a wave, such as the one created by a hand splashing in water at a frequency of 2.00 Hz, with the waves propagating at a speed of 0.800 m/s, you can use the formula:
wavelength (λ) = speed (v) / frequency (f)
By substituting the given values:
λ = 0.800 m/s / 2.00 Hz
λ = 0.400 meters
The wavelength of the waves in this case would be 0.400 meters. The student's reference to a '5.00 duck' appears to be a typo and is not relevant to the calculation of wavelength.