Posted by Tula on Tuesday, January 11, 2011 at 4:55pm.
L = 1.3m * 3.3ft/m = 4.29ft.
L = V(1/F) = 4.29FT,
L = 990ft/us * (1/f)us = 4.29,
L = 990 / f = 4.29,
4.29f = 990,
f = 990 / 4.29 = 231Mh.
CORRECTION!
The speed of sound in air = 343m/s.
L = 343m/s * (1/f)s = 1.3m,
343 / f = 1.3,
1.3f = 343,
f = 343 / 1.3 = 263.8Hz.
Related Questions
physics - A sound wave travels in air at a frequency of 500 Hz. If part of the ...
Physics - The period of longitudinal sinusoidal wave is 0.16 seconds and its ...
Phys Sci - A sound is traveling through air with a temperature of 35 0C. The ...
Science - Does increasing the frequency of a wave also increase its wavelength? ...
Science - What is the full formula for frequencys and wavelengths? The ...
Intergarted Science - I had a couple of questions on the topic of Waves-Sound ...
physics - If the wavelength of a sound wave in an unknown material is 20 ...
physics - At 0°C sound travels through air at a speed of 330 m/s. If a sound...
Waves-Science - I had a couple of questions on the topic of Waves-Sound and ...
Physics-please - When a sound wave passes from air into a solid object, which of...
For Further Reading
