1. A sound wave has a wavelength of 2.05 x 10^-2 m and a frequency of 13,400 Hz. Solve for the wave's velocity.

2. Organ pipes, open at one end, resonate best when their length is 1/4 . Three pipes have lengths 23.0 cm, 30.0 cm, and 38.0 cm.

a. Find the wavelength of the sound emitted by each pipe.

b. Find the frequency of each pipe of the speed of sound is 341 m/s.

3. The first resonant length of an open air column in resonance with a 512 Hz fork is 33.0 cm. Find the speed of sound.