The velocity of a wave is calculated using the following formula:

Velocity (v) = Frequency (f) x Wavelength (λ)

In this case:

* Frequency (f) = Hz

* Wavelength (λ) = 2m

Therefore, the velocity of the wave is:

v = Hz x 2m

v = 2 Hz·m

Note: Since you only provided "Hz" for the frequency, the final velocity will be expressed in "Hz·m" (Hertz-meters). To get a more conventional unit like meters per second (m/s), you would need to substitute a numerical value for the frequency in Hertz.