Answer: 25 m/s
Explanation:
To calculate the speed of a wave, simply multiply its wavelength and its frequency (given that you are provided with the two variables).
This makes sense, since the unit for speed (m/s) matches that of the product of wavelength (m) and frequency (Hz). Keep in mind that one Hz is equivalent to one inverse second (
s
−
1
or
1
s
).
If you multiply m (the unit for wavelength) with
1
s
(the unit for frequency), you will get m/s, the unit for speed.
Now multiply!
.5 m * 50 Hz = 25 m/s
25 m/s is your final answer!
