sound wave (v = 340 m/s) is observed to have a frequency of 5,671 Hz. What is the wavelength of this sound, in m?

A particular wave is observed to have a frequency of 459 Hz and a wavelength of 0.6 m. The wave travels from you to a wall 111 m away and then returns to you. How much time, in s, does it take for the echo to return to you after it has left?

Consider a wave described by the displacement-position and displacement-time graphs below. Calculate the speed of this wave, in m/s.

-5 0 10 15 * ( m ) d (m) 3-5 + A 0 0!5 1.5 t ($)