Answer:
0.31m/s
Explanation:
Given parameters:
Wavelength = 3.7cm
Frequency = 8.4Hz
Unknown:
Speed of the wave = ?
Solution:
The speed of a wave is the product of its wavelength and frequency. It is mathematically expressed as;
Speed of the wave = Frequency x Wavelength
Convert cm to m;
100cm = 1 m
3.7cm = 0.037m
Now,
Speed of the wave = 8.4 x 0.037 = 0.31m/s