To find the speed of a wave, we can use the formula:
\[ v = f \times \lambda \]
where:
- \( v \) is the speed of the wave (in meters per second, m/s),
- \( f \) is the frequency of the wave (in hertz, Hz),
- \( \lambda \) is the wavelength (in meters, m).
Given:
- Wavelength (\( \lambda \)) = 14 m
- Frequency (\( f \)) = 10 Hz
Now we can substitute the values into the formula:
\[ v = 10 , \text{Hz} \times 14 , \text{m} \]
Now, perform the multiplication:
\[ v = 140 , \text{m/s} \]
Thus, the speed of the wave is 140 meters per second (m/s).