Question

What is the wavelength of a sound wave that has a speed of 340 m/s and a frequency of 880 Hz?
What is the wavelength of a sound wave that has a speed of 250 m/s and a frequency of 400 Hz?
What is the wave speed of a wave that has a frequency of 50 Hz and a wavelength of 2.0 m?
What is the wave speed of a wave that has a frequency of 100 Hz and a wavelength of 0.50 m?

Answer 1

Wave length of a sound wave = speed / frequency

1) 340 m/s / 880 Hz = 0.3864 meters
2) 250 m/s / 400 Hz = 0.625 meters

wave speed of a wave = wave length * frequency

3) 2.0 m * 50 Hz = 100 m/s
4) 0.50 m * 100 Hz = 50 m/s

Answer 2

0.50 m * 100 Hz

= 50 m/s

hope this helps :)