Final answer:
Without the frequency or additional information, we cannot determine the speed of a wave with a given wavelength. The speed of a wave is calculated using the equation v=f × λ, where v is speed, f is frequency, and λ is wavelength.
Step-by-step explanation:
To determine the speed of a wave given its wavelength, we need to know its frequency or have additional information that relates the speed to the wavelength. However, the provided information is insufficient to identify the speed of the wave since we have only the wavelength of 0.3m and no frequency. The typical formula used for this calculation would be v = f × λ, where v is the wave speed, f is the frequency, and λ is the wavelength. Therefore, we would need the frequency to calculate the wave speed directly.
If the frequency were provided or implied, you could use one of the practice problems listed as a guide for how to calculate wave speed. For instance, given a frequency and a wavelength, you simply multiply them together to get the speed (Problem 8). In the absence of such information, it is not possible to accurately answer which of the provided speeds (0.3 m/s, 0.9 m/s, 3 m/s, 9 m/s) corresponds to the wave with a 0.3m wavelength.